5.15.61-rc1 review

index b117765d58c0..0dd7aa1797f6 100644
@@ -1071,6 +1071,37 @@ static void bio_put_pages(struct page **pages, size_t size, size_t off)
 		put_page(pages[i]);
 }
 
+static int bio_iov_add_page(struct bio *bio, struct page *page,
+		unsigned int len, unsigned int offset)
+{
+	bool same_page = false;
+
+	if (!__bio_try_merge_page(bio, page, len, offset, &same_page)) {
+		if (WARN_ON_ONCE(bio_full(bio, len)))
+			return -EINVAL;
+		__bio_add_page(bio, page, len, offset);
+		return 0;
+	}
+
+	if (same_page)
+		put_page(page);
+	return 0;
+}
+
+static int bio_iov_add_zone_append_page(struct bio *bio, struct page *page,
+		unsigned int len, unsigned int offset)
+{
+	struct request_queue *q = bdev_get_queue(bio->bi_bdev);
+	bool same_page = false;
+
+	if (bio_add_hw_page(q, bio, page, len, offset,
+			queue_max_zone_append_sectors(q), &same_page) != len)
+		return -EINVAL;
+	if (same_page)
+		put_page(page);
+	return 0;
+}
+
 #define PAGE_PTRS_PER_BVEC     (sizeof(struct bio_vec) / sizeof(struct page *))
 
 /**

@@ -1089,7 +1120,6 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	unsigned short entries_left = bio->bi_max_vecs - bio->bi_vcnt;
 	struct bio_vec *bv = bio->bi_io_vec + bio->bi_vcnt;
 	struct page **pages = (struct page **)bv;
-	bool same_page = false;
 	ssize_t size, left;
 	unsigned len, i;
 	size_t offset;

@@ -1098,7 +1128,7 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	 * Move page array up in the allocated memory for the bio vecs as far as
 	 * possible so that we can start filling biovecs from the beginning
 	 * without overwriting the temporary page array.
-	*/
+	 */
 	BUILD_BUG_ON(PAGE_PTRS_PER_BVEC < 2);
 	pages += entries_left * (PAGE_PTRS_PER_BVEC - 1);
 

@@ -1108,18 +1138,18 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 
 	for (left = size, i = 0; left > 0; left -= len, i++) {
 		struct page *page = pages[i];
+		int ret;
 
 		len = min_t(size_t, PAGE_SIZE - offset, left);
+		if (bio_op(bio) == REQ_OP_ZONE_APPEND)
+			ret = bio_iov_add_zone_append_page(bio, page, len,
+					offset);
+		else
+			ret = bio_iov_add_page(bio, page, len, offset);
 
-		if (__bio_try_merge_page(bio, page, len, offset, &same_page)) {
-			if (same_page)
-				put_page(page);
-		} else {
-			if (WARN_ON_ONCE(bio_full(bio, len))) {
-				bio_put_pages(pages + i, left, offset);
-				return -EINVAL;
-			}
-			__bio_add_page(bio, page, len, offset);
+		if (ret) {
+			bio_put_pages(pages + i, left, offset);
+			return ret;
 		}
 		offset = 0;
 	}

@@ -1128,51 +1158,6 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	return 0;
 }
 
-static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
-{
-	unsigned short nr_pages = bio->bi_max_vecs - bio->bi_vcnt;
-	unsigned short entries_left = bio->bi_max_vecs - bio->bi_vcnt;
-	struct request_queue *q = bdev_get_queue(bio->bi_bdev);
-	unsigned int max_append_sectors = queue_max_zone_append_sectors(q);
-	struct bio_vec *bv = bio->bi_io_vec + bio->bi_vcnt;
-	struct page **pages = (struct page **)bv;
-	ssize_t size, left;
-	unsigned len, i;
-	size_t offset;
-	int ret = 0;
-
-	/*
-	 * Move page array up in the allocated memory for the bio vecs as far as
-	 * possible so that we can start filling biovecs from the beginning
-	 * without overwriting the temporary page array.
-	 */
-	BUILD_BUG_ON(PAGE_PTRS_PER_BVEC < 2);
-	pages += entries_left * (PAGE_PTRS_PER_BVEC - 1);
-
-	size = iov_iter_get_pages(iter, pages, LONG_MAX, nr_pages, &offset);
-	if (unlikely(size <= 0))
-		return size ? size : -EFAULT;
-
-	for (left = size, i = 0; left > 0; left -= len, i++) {
-		struct page *page = pages[i];
-		bool same_page = false;
-
-		len = min_t(size_t, PAGE_SIZE - offset, left);
-		if (bio_add_hw_page(q, bio, page, len, offset,
-				max_append_sectors, &same_page) != len) {
-			bio_put_pages(pages + i, left, offset);
-			ret = -EINVAL;
-			break;
-		}
-		if (same_page)
-			put_page(page);
-		offset = 0;
-	}
-
-	iov_iter_advance(iter, size - left);
-	return ret;
-}
-
 /**
  * bio_iov_iter_get_pages - add user or kernel pages to a bio
  * @bio: bio to add pages to

@@ -1207,10 +1192,7 @@ int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	}
 
 	do {
-		if (bio_op(bio) == REQ_OP_ZONE_APPEND)
-			ret = __bio_iov_append_get_pages(bio, iter);
-		else
-			ret = __bio_iov_iter_get_pages(bio, iter);
+		ret = __bio_iov_iter_get_pages(bio, iter);
 	} while (!ret && iov_iter_count(iter) && !bio_full(bio, 0));
 
 	/* don't account direct I/O as memory stall */

index 0dd7aa1797f6..ba9120d4fe49 100644
@@ -1123,6 +1123,7 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	ssize_t size, left;
 	unsigned len, i;
 	size_t offset;
+	int ret = 0;
 
 	/*
 	 * Move page array up in the allocated memory for the bio vecs as far as

@@ -1138,7 +1139,6 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 
 	for (left = size, i = 0; left > 0; left -= len, i++) {
 		struct page *page = pages[i];
-		int ret;
 
 		len = min_t(size_t, PAGE_SIZE - offset, left);
 		if (bio_op(bio) == REQ_OP_ZONE_APPEND)

@@ -1149,13 +1149,13 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 
 		if (ret) {
 			bio_put_pages(pages + i, left, offset);
-			return ret;
+			break;
 		}
 		offset = 0;
 	}
 
-	iov_iter_advance(iter, size);
-	return 0;
+	iov_iter_advance(iter, size - left);
+	return ret;
 }
 
 /**

index 34b1406c06fd..69538061c551 100644
@@ -564,13 +564,13 @@ void jbd2_journal_commit_transaction(journal_t *journal)
 	 */
 	jbd2_journal_switch_revoke_table(journal);
 
+	write_lock(&journal->j_state_lock);
 	/*
 	 * Reserved credits cannot be claimed anymore, free them
 	 */
 	atomic_sub(atomic_read(&journal->j_reserved_credits),
 		   &commit_transaction->t_outstanding_credits);
 
-	write_lock(&journal->j_state_lock);
 	trace_jbd2_commit_flushing(journal, commit_transaction);
 	stats.run.rs_flushing = jiffies;
 	stats.run.rs_locked = jbd2_time_diff(stats.run.rs_locked,

index ff8916e1d38e..af5a75a89e6e 100644
@@ -417,7 +417,7 @@ int ext4_ext_migrate(struct inode *inode)
 	struct inode *tmp_inode = NULL;
 	struct migrate_struct lb;
 	unsigned long max_entries;
-	__u32 goal;
+	__u32 goal, tmp_csum_seed;
 	uid_t owner[2];
 
 	/*

@@ -465,6 +465,7 @@ int ext4_ext_migrate(struct inode *inode)
 	 * the migration.
 	 */
 	ei = EXT4_I(inode);
+	tmp_csum_seed = EXT4_I(tmp_inode)->i_csum_seed;
 	EXT4_I(tmp_inode)->i_csum_seed = ei->i_csum_seed;
 	i_size_write(tmp_inode, i_size_read(inode));
 	/*

@@ -575,6 +576,7 @@ int ext4_ext_migrate(struct inode *inode)
 	 * the inode is not visible to user space.
 	 */
 	tmp_inode->i_blocks = 0;
+	EXT4_I(tmp_inode)->i_csum_seed = tmp_csum_seed;
 
 	/* Reset the extent details */
 	ext4_ext_tree_init(handle, tmp_inode);

index 6a3caedd2285..53cb236b53db 100644
@@ -1477,8 +1477,6 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 	struct journal_head *jh;
 	int ret = 0;
 
-	if (is_handle_aborted(handle))
-		return -EROFS;
 	if (!buffer_jbd(bh))
 		return -EUCLEAN;
 

@@ -1525,6 +1523,18 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 	journal = transaction->t_journal;
 	spin_lock(&jh->b_state_lock);
 
+	if (is_handle_aborted(handle)) {
+		/*
+		 * Check journal aborting with @jh->b_state_lock locked,
+		 * since 'jh->b_transaction' could be replaced with
+		 * 'jh->b_next_transaction' during old transaction
+		 * committing if journal aborted, which may fail
+		 * assertion on 'jh->b_frozen_data == NULL'.
+		 */
+		ret = -EROFS;
+		goto out_unlock_bh;
+	}
+
 	if (jh->b_modified == 0) {
 		/*
 		 * This buffer's got modified and becoming part

index e0cf62e65075..ae049eb28b93 100644
@@ -2280,16 +2280,20 @@ static int cdns3_gadget_ep_enable(struct usb_ep *ep,
 	int ret = 0;
 	int val;
 
+	if (!ep) {
+		pr_debug("usbss: ep not configured?\n");
+		return -EINVAL;
+	}
+
 	priv_ep = ep_to_cdns3_ep(ep);
+	priv_dev = priv_ep->cdns3_dev;
+	comp_desc = priv_ep->endpoint.comp_desc;
 
-	if (!ep || !desc || desc->bDescriptorType != USB_DT_ENDPOINT) {
+	if (!desc || desc->bDescriptorType != USB_DT_ENDPOINT) {
 		dev_dbg(priv_dev->dev, "usbss: invalid parameters\n");
 		return -EINVAL;
 	}
 
-	comp_desc = priv_ep->endpoint.comp_desc;
-	priv_dev = priv_ep->cdns3_dev;
-
 	if (!desc->wMaxPacketSize) {
 		dev_err(priv_dev->dev, "usbss: missing wMaxPacketSize\n");
 		return -EINVAL;

index 04b4691a8aac..b2da497dd378 100644
@@ -2388,8 +2388,8 @@ struct opp_table *dev_pm_opp_attach_genpd(struct device *dev,
 		}
 
 		virt_dev = dev_pm_domain_attach_by_name(dev, *name);
-		if (IS_ERR(virt_dev)) {
-			ret = PTR_ERR(virt_dev);
+		if (IS_ERR_OR_NULL(virt_dev)) {
+			ret = PTR_ERR(virt_dev) ? : -ENODEV;
 			dev_err(dev, "Couldn't attach to pm_domain: %d\n", ret);
 			goto err;
 		}

index a201d652aca2..8823edc35113 100644
@@ -994,6 +994,7 @@ static int cros_ec_codec_platform_probe(struct platform_device *pdev)
 			dev_dbg(dev, "ap_shm_phys_addr=%#llx len=%#x\n",
 				priv->ap_shm_phys_addr, priv->ap_shm_len);
 		}
+		of_node_put(node);
 	}
 #endif
 

index 83acbe57b248..a0825da9fff9 100644
@@ -628,8 +628,10 @@ static int aries_audio_probe(struct platform_device *pdev)
 		return -EINVAL;
 
 	codec = of_get_child_by_name(dev->of_node, "codec");
-	if (!codec)
-		return -EINVAL;
+	if (!codec) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	for_each_card_prelinks(card, i, dai_link) {
 		dai_link->codecs->of_node = of_parse_phandle(codec,

index dfa05d40b276..a8e5e0f57faf 100644
@@ -298,7 +298,7 @@ static int imx_audmux_probe(struct platform_device *pdev)
 		audmux_clk = NULL;
 	}
 
-	audmux_type = (enum imx_audmux_type)of_device_get_match_data(&pdev->dev);
+	audmux_type = (uintptr_t)of_device_get_match_data(&pdev->dev);
 
 	switch (audmux_type) {
 	case IMX31_AUDMUX:

index c8e4e85e1057..94a9bbf144d1 100644
@@ -256,14 +256,16 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_node;
 	}
 	mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_node;
 	}
 	mt8173_rt5650_rt5676_codec_conf[0].dlc.of_node =
 		mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node;

@@ -276,7 +278,8 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_node;
 	}
 
 	card->dev = &pdev->dev;

@@ -286,6 +289,7 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
 
+put_node:
 	of_node_put(platform_node);
 	return ret;
 }

index 496f32bcfb5e..d2f6213a6bfc 100644
@@ -217,7 +217,8 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
 	if (!codec_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_platform_node;
 	}
 	for_each_card_prelinks(card, i, dai_link) {
 		if (dai_link->codecs->name)

@@ -230,6 +231,9 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
 
+	of_node_put(codec_node);
+put_platform_node:
+	of_node_put(platform_node);
 	return ret;
 }
 

index 8af344b2fdbf..d75d15006f64 100644
@@ -1336,6 +1336,8 @@ static int __init da7210_modinit(void)
 	int ret = 0;
 #if IS_ENABLED(CONFIG_I2C)
 	ret = i2c_add_driver(&da7210_i2c_driver);
+	if (ret)
+		return ret;
 #endif
 #if defined(CONFIG_SPI_MASTER)
 	ret = spi_register_driver(&da7210_spi_driver);

index e168d31f4445..1de9dab218c6 100644
@@ -280,7 +280,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 	if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_platform_node;
 	}
 	mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
 		mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;

@@ -293,7 +294,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"%s codec_capture_dai name fail %d\n",
 				__func__, ret);
-			return ret;
+			goto put_platform_node;
 		}
 		mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =
 			codec_capture_dai;

@@ -315,7 +316,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 	if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_platform_node;
 	}
 	card->dev = &pdev->dev;
 

@@ -324,6 +326,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
 
+put_platform_node:
 	of_node_put(platform_node);
 	return ret;
 }

index 6473361525d1..0efe4df24622 100644
@@ -120,6 +120,28 @@ static inline void serial_out(struct uart_8250_port *up, int offset, int value)
 	up->port.serial_out(&up->port, offset, value);
 }
 
+/*
+ * For the 16C950
+ */
+static void serial_icr_write(struct uart_8250_port *up, int offset, int value)
+{
+	serial_out(up, UART_SCR, offset);
+	serial_out(up, UART_ICR, value);
+}
+
+static unsigned int __maybe_unused serial_icr_read(struct uart_8250_port *up,
+						   int offset)
+{
+	unsigned int value;
+
+	serial_icr_write(up, UART_ACR, up->acr | UART_ACR_ICRRD);
+	serial_out(up, UART_SCR, offset);
+	value = serial_in(up, UART_ICR);
+	serial_icr_write(up, UART_ACR, up->acr);
+
+	return value;
+}
+
 void serial8250_clear_and_reinit_fifos(struct uart_8250_port *p);
 
 static inline int serial_dl_read(struct uart_8250_port *up)

index 4f66825abe67..a5496bd1b650 100644
@@ -537,27 +537,6 @@ serial_port_out_sync(struct uart_port *p, int offset, int value)
 	}
 }
 
-/*
- * For the 16C950
- */
-static void serial_icr_write(struct uart_8250_port *up, int offset, int value)
-{
-	serial_out(up, UART_SCR, offset);
-	serial_out(up, UART_ICR, value);
-}
-
-static unsigned int serial_icr_read(struct uart_8250_port *up, int offset)
-{
-	unsigned int value;
-
-	serial_icr_write(up, UART_ACR, up->acr | UART_ACR_ICRRD);
-	serial_out(up, UART_SCR, offset);
-	value = serial_in(up, UART_ICR);
-	serial_icr_write(up, UART_ACR, up->acr);
-
-	return value;
-}
-
 /*
  * FIFO support.
  */

index 0efe4df24622..b3abc29aa927 100644
@@ -17,6 +17,8 @@
 struct uart_8250_dma {
 	int (*tx_dma)(struct uart_8250_port *p);
 	int (*rx_dma)(struct uart_8250_port *p);
+	void (*prepare_tx_dma)(struct uart_8250_port *p);
+	void (*prepare_rx_dma)(struct uart_8250_port *p);
 
 	/* Filter function */
 	dma_filter_fn		fn;

@@ -331,6 +333,22 @@ extern int serial8250_rx_dma(struct uart_8250_port *);
 extern void serial8250_rx_dma_flush(struct uart_8250_port *);
 extern int serial8250_request_dma(struct uart_8250_port *);
 extern void serial8250_release_dma(struct uart_8250_port *);
+
+static inline void serial8250_do_prepare_tx_dma(struct uart_8250_port *p)
+{
+	struct uart_8250_dma *dma = p->dma;
+
+	if (dma->prepare_tx_dma)
+		dma->prepare_tx_dma(p);
+}
+
+static inline void serial8250_do_prepare_rx_dma(struct uart_8250_port *p)
+{
+	struct uart_8250_dma *dma = p->dma;
+
+	if (dma->prepare_rx_dma)
+		dma->prepare_rx_dma(p);
+}
 #else
 static inline int serial8250_tx_dma(struct uart_8250_port *p)
 {

index b3c3f7e5851a..1bdc8d6432fe 100644
@@ -86,6 +86,8 @@ int serial8250_tx_dma(struct uart_8250_port *p)
 
 	dma->tx_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
 
+	serial8250_do_prepare_tx_dma(p);
+
 	desc = dmaengine_prep_slave_single(dma->txchan,
 					   dma->tx_addr + xmit->tail,
 					   dma->tx_size, DMA_MEM_TO_DEV,

@@ -123,6 +125,8 @@ int serial8250_rx_dma(struct uart_8250_port *p)
 	if (dma->rx_running)
 		return 0;
 
+	serial8250_do_prepare_rx_dma(p);
+
 	desc = dmaengine_prep_slave_single(dma->rxchan, dma->rx_addr,
 					   dma->rx_size, DMA_DEV_TO_MEM,
 					   DMA_PREP_INTERRUPT | DMA_CTRL_ACK);

index 49559731bbcf..ace221afeb03 100644
@@ -124,12 +124,15 @@ static void dw8250_check_lcr(struct uart_port *p, int value)
 /* Returns once the transmitter is empty or we run out of retries */
 static void dw8250_tx_wait_empty(struct uart_port *p)
 {
+	struct uart_8250_port *up = up_to_u8250p(p);
 	unsigned int tries = 20000;
 	unsigned int delay_threshold = tries - 1000;
 	unsigned int lsr;
 
 	while (tries--) {
 		lsr = readb (p->membase + (UART_LSR << p->regshift));
+		up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
+
 		if (lsr & UART_LSR_TEMT)
 			break;
 

index 20a07c92b2fc..098a58990f07 100644
@@ -328,8 +328,8 @@ static const struct snd_kcontrol_new rx1_mix2_inp1_mux = SOC_DAPM_ENUM(
 static const struct snd_kcontrol_new rx2_mix2_inp1_mux = SOC_DAPM_ENUM(
 				"RX2 MIX2 INP1 Mux", rx2_mix2_inp1_chain_enum);
 
-/* Digital Gain control -38.4 dB to +38.4 dB in 0.3 dB steps */
-static const DECLARE_TLV_DB_SCALE(digital_gain, -3840, 30, 0);
+/* Digital Gain control -84 dB to +40 dB in 1 dB steps */
+static const DECLARE_TLV_DB_SCALE(digital_gain, -8400, 100, -8400);
 
 /* Cutoff Freq for High Pass Filter at -3dB */
 static const char * const hpf_cutoff_text[] = {

@@ -510,15 +510,15 @@ static int wcd_iir_filter_info(struct snd_kcontrol *kcontrol,
 
 static const struct snd_kcontrol_new msm8916_wcd_digital_snd_controls[] = {
 	SOC_SINGLE_S8_TLV("RX1 Digital Volume", LPASS_CDC_RX1_VOL_CTL_B2_CTL,
-			  -128, 127, digital_gain),
+			-84, 40, digital_gain),
 	SOC_SINGLE_S8_TLV("RX2 Digital Volume", LPASS_CDC_RX2_VOL_CTL_B2_CTL,
-			  -128, 127, digital_gain),
+			-84, 40, digital_gain),
 	SOC_SINGLE_S8_TLV("RX3 Digital Volume", LPASS_CDC_RX3_VOL_CTL_B2_CTL,
-			  -128, 127, digital_gain),
+			-84, 40, digital_gain),
 	SOC_SINGLE_S8_TLV("TX1 Digital Volume", LPASS_CDC_TX1_VOL_CTL_GAIN,
-			  -128, 127, digital_gain),
+			-84, 40, digital_gain),
 	SOC_SINGLE_S8_TLV("TX2 Digital Volume", LPASS_CDC_TX2_VOL_CTL_GAIN,
-			  -128, 127, digital_gain),
+			-84, 40, digital_gain),
 	SOC_ENUM("TX1 HPF Cutoff", tx1_hpf_cutoff_enum),
 	SOC_ENUM("TX2 HPF Cutoff", tx2_hpf_cutoff_enum),
 	SOC_SINGLE("TX1 HPF Switch", LPASS_CDC_TX1_MUX_CTL, 3, 1, 0),

@@ -553,22 +553,22 @@ static const struct snd_kcontrol_new msm8916_wcd_digital_snd_controls[] = {
 	WCD_IIR_FILTER_CTL("IIR2 Band3", IIR2, BAND3),
 	WCD_IIR_FILTER_CTL("IIR2 Band4", IIR2, BAND4),
 	WCD_IIR_FILTER_CTL("IIR2 Band5", IIR2, BAND5),
-	SOC_SINGLE_SX_TLV("IIR1 INP1 Volume", LPASS_CDC_IIR1_GAIN_B1_CTL,
-			0,  -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR1 INP2 Volume", LPASS_CDC_IIR1_GAIN_B2_CTL,
-			0,  -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR1 INP3 Volume", LPASS_CDC_IIR1_GAIN_B3_CTL,
-			0,  -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR1 INP4 Volume", LPASS_CDC_IIR1_GAIN_B4_CTL,
-			0,  -84,	40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR2 INP1 Volume", LPASS_CDC_IIR2_GAIN_B1_CTL,
-			0,  -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR2 INP2 Volume", LPASS_CDC_IIR2_GAIN_B2_CTL,
-			0,  -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR2 INP3 Volume", LPASS_CDC_IIR2_GAIN_B3_CTL,
-			0,  -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("IIR2 INP4 Volume", LPASS_CDC_IIR2_GAIN_B4_CTL,
-			0,  -84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR1 INP1 Volume", LPASS_CDC_IIR1_GAIN_B1_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR1 INP2 Volume", LPASS_CDC_IIR1_GAIN_B2_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR1 INP3 Volume", LPASS_CDC_IIR1_GAIN_B3_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR1 INP4 Volume", LPASS_CDC_IIR1_GAIN_B4_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR2 INP1 Volume", LPASS_CDC_IIR2_GAIN_B1_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR2 INP2 Volume", LPASS_CDC_IIR2_GAIN_B2_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR2 INP3 Volume", LPASS_CDC_IIR2_GAIN_B3_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("IIR2 INP4 Volume", LPASS_CDC_IIR2_GAIN_B4_CTL,
+			-84, 40, digital_gain),
 
 };
 

index bc5d68c53e5a..3a13afbfb74b 100644
@@ -2252,51 +2252,42 @@ static int wcd9335_rx_hph_mode_put(struct snd_kcontrol *kc,
 
 static const struct snd_kcontrol_new wcd9335_snd_controls[] = {
 	/* -84dB min - 40dB max */
-	SOC_SINGLE_SX_TLV("RX0 Digital Volume", WCD9335_CDC_RX0_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX1 Digital Volume", WCD9335_CDC_RX1_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX2 Digital Volume", WCD9335_CDC_RX2_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX3 Digital Volume", WCD9335_CDC_RX3_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX4 Digital Volume", WCD9335_CDC_RX4_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX5 Digital Volume", WCD9335_CDC_RX5_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX6 Digital Volume", WCD9335_CDC_RX6_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX7 Digital Volume", WCD9335_CDC_RX7_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX8 Digital Volume", WCD9335_CDC_RX8_RX_VOL_CTL,
-		0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX0 Mix Digital Volume",
-			  WCD9335_CDC_RX0_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX1 Mix Digital Volume",
-			  WCD9335_CDC_RX1_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX2 Mix Digital Volume",
-			  WCD9335_CDC_RX2_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX3 Mix Digital Volume",
-			  WCD9335_CDC_RX3_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX4 Mix Digital Volume",
-			  WCD9335_CDC_RX4_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX5 Mix Digital Volume",
-			  WCD9335_CDC_RX5_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX6 Mix Digital Volume",
-			  WCD9335_CDC_RX6_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX7 Mix Digital Volume",
-			  WCD9335_CDC_RX7_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
-	SOC_SINGLE_SX_TLV("RX8 Mix Digital Volume",
-			  WCD9335_CDC_RX8_RX_VOL_MIX_CTL,
-			  0, -84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX0 Digital Volume", WCD9335_CDC_RX0_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX1 Digital Volume", WCD9335_CDC_RX1_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX2 Digital Volume", WCD9335_CDC_RX2_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX3 Digital Volume", WCD9335_CDC_RX3_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX4 Digital Volume", WCD9335_CDC_RX4_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX5 Digital Volume", WCD9335_CDC_RX5_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX6 Digital Volume", WCD9335_CDC_RX6_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX7 Digital Volume", WCD9335_CDC_RX7_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX8 Digital Volume", WCD9335_CDC_RX8_RX_VOL_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX0 Mix Digital Volume", WCD9335_CDC_RX0_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX1 Mix Digital Volume", WCD9335_CDC_RX1_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX2 Mix Digital Volume", WCD9335_CDC_RX2_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX3 Mix Digital Volume", WCD9335_CDC_RX3_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX4 Mix Digital Volume", WCD9335_CDC_RX4_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX5 Mix Digital Volume", WCD9335_CDC_RX5_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX6 Mix Digital Volume", WCD9335_CDC_RX6_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX7 Mix Digital Volume", WCD9335_CDC_RX7_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
+	SOC_SINGLE_S8_TLV("RX8 Mix Digital Volume", WCD9335_CDC_RX8_RX_VOL_MIX_CTL,
+			-84, 40, digital_gain),
 	SOC_ENUM("RX INT0_1 HPF cut off", cf_int0_1_enum),
 	SOC_ENUM("RX INT0_2 HPF cut off", cf_int0_2_enum),
 	SOC_ENUM("RX INT1_1 HPF cut off", cf_int1_1_enum),

index 49dd5a200998..88c985f9e73a 100644
@@ -127,8 +127,11 @@ static int rpmsg_eptdev_open(struct inode *inode, struct file *filp)
 	struct rpmsg_device *rpdev = eptdev->rpdev;
 	struct device *dev = &eptdev->dev;
 
-	if (eptdev->ept)
+	mutex_lock(&eptdev->ept_lock);
+	if (eptdev->ept) {
+		mutex_unlock(&eptdev->ept_lock);
 		return -EBUSY;
+	}
 
 	get_device(dev);
 

@@ -136,11 +139,13 @@ static int rpmsg_eptdev_open(struct inode *inode, struct file *filp)
 	if (!ept) {
 		dev_err(dev, "failed to open %s\n", eptdev->chinfo.name);
 		put_device(dev);
+		mutex_unlock(&eptdev->ept_lock);
 		return -EINVAL;
 	}
 
 	eptdev->ept = ept;
 	filp->private_data = eptdev;
+	mutex_unlock(&eptdev->ept_lock);
 
 	return 0;
 }

index 96a17ec29140..2d8cb596ad69 100644
@@ -234,7 +234,9 @@ static void mtk_register_device_work_function(struct work_struct *register_work)
 		if (info->registered)
 			continue;
 
+		mutex_unlock(&subdev->channels_lock);
 		ret = mtk_rpmsg_register_device(subdev, &info->info);
+		mutex_lock(&subdev->channels_lock);
 		if (ret) {
 			dev_err(&pdev->dev, "Can't create rpmsg_device\n");
 			continue;

index 71615210df3e..54266ea69c84 100644
@@ -1430,6 +1430,7 @@ static int k3_r5_cluster_of_init(struct platform_device *pdev)
 		if (!cpdev) {
 			ret = -ENODEV;
 			dev_err(dev, "could not get R5 core platform device\n");
+			of_node_put(child);
 			goto fail;
 		}
 

@@ -1438,6 +1439,7 @@ static int k3_r5_cluster_of_init(struct platform_device *pdev)
 			dev_err(dev, "k3_r5_core_of_init failed, ret = %d\n",
 				ret);
 			put_device(&cpdev->dev);
+			of_node_put(child);
 			goto fail;
 		}
 

@@ -16,10 +16,12 @@ MODULE_PARM_DESC(block_transition, "bloc
 
 static void busymod_work_func(struct work_struct *work);
 static DECLARE_WORK(work, busymod_work_func);
+static DECLARE_COMPLETION(busymod_work_started);
 
 static void busymod_work_func(struct work_struct *work)
 {
 	pr_info("%s enter\n", __func__);
+	complete(&busymod_work_started);
 
 	while (READ_ONCE(block_transition)) {
 		/*

@@ -37,6 +39,12 @@ static int test_klp_callbacks_busy_init(
 	pr_info("%s\n", __func__);
 	schedule_work(&work);
 
+	/*
+	 * To synchronize kernel messages, hold the init function from
+	 * exiting until the work function's entry message has printed.
+	 */
+	wait_for_completion(&busymod_work_started);
+
 	if (!block_transition) {
 		/*
 		 * Serialize output: print all messages from the work

index eb9c7f0f5ac5..0db1122855c0 100644
@@ -109,6 +109,13 @@ int __ref profile_init(void)
 
 	/* only text is profiled */
 	prof_len = (_etext - _stext) >> prof_shift;
+
+	if (!prof_len) {
+		pr_warn("profiling shift: %u too large\n", prof_shift);
+		prof_on = 0;
+		return -EINVAL;
+	}
+
 	buffer_bytes = prof_len*sizeof(atomic_t);
 
 	if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL))

index 59eae605ad59..e8a170ad43c1 100644
@@ -586,16 +586,17 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
 
 		node = of_parse_phandle(np, "memory-region", a);
 		/* Not map vdevbuffer, vdevring region */
-		if (!strncmp(node->name, "vdev", strlen("vdev")))
+		if (!strncmp(node->name, "vdev", strlen("vdev"))) {
+			of_node_put(node);
 			continue;
+		}
 		err = of_address_to_resource(node, 0, &res);
+		of_node_put(node);
 		if (err) {
 			dev_err(dev, "unable to resolve memory region\n");
 			return err;
 		}
 
-		of_node_put(node);
-
 		if (b >= IMX_RPROC_MEM_MAX)
 			break;
 

index c994e67d1eaf..ca086243fcfd 100644
@@ -8,7 +8,7 @@
 // Based on version from Arnaud Patard <[email protected]>
 
 #include <linux/types.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
 
 #include <sound/soc.h>

index e78de7050947..1078784b74c9 100644
@@ -1320,27 +1320,22 @@ static void power_pmu_disable(struct pmu *pmu)
 		 * a PMI happens during interrupt replay and perf counter
 		 * values are cleared by PMU callbacks before replay.
 		 *
-		 * If any PMC corresponding to the active PMU events are
-		 * overflown, disable the interrupt by clearing the paca
-		 * bit for PMI since we are disabling the PMU now.
-		 * Otherwise provide a warning if there is PMI pending, but
-		 * no counter is found overflown.
+		 * Disable the interrupt by clearing the paca bit for PMI
+		 * since we are disabling the PMU now. Otherwise provide a
+		 * warning if there is PMI pending, but no counter is found
+		 * overflown.
+		 *
+		 * Since power_pmu_disable runs under local_irq_save, it
+		 * could happen that code hits a PMC overflow without PMI
+		 * pending in paca. Hence only clear PMI pending if it was
+		 * set.
+		 *
+		 * If a PMI is pending, then MSR[EE] must be disabled (because
+		 * the masked PMI handler disabling EE). So it is safe to
+		 * call clear_pmi_irq_pending().
 		 */
-		if (any_pmc_overflown(cpuhw)) {
-			/*
-			 * Since power_pmu_disable runs under local_irq_save, it
-			 * could happen that code hits a PMC overflow without PMI
-			 * pending in paca. Hence only clear PMI pending if it was
-			 * set.
-			 *
-			 * If a PMI is pending, then MSR[EE] must be disabled (because
-			 * the masked PMI handler disabling EE). So it is safe to
-			 * call clear_pmi_irq_pending().
-			 */
-			if (pmi_irq_pending())
-				clear_pmi_irq_pending();
-		} else
-			WARN_ON(pmi_irq_pending());
+		if (pmi_irq_pending())
+			clear_pmi_irq_pending();
 
 		val = mmcra = cpuhw->mmcr.mmcra;
 

index 6ea1c8cc9167..2820097b00b9 100644
@@ -128,7 +128,7 @@ static int rx1950_startup(struct snd_pcm_substream *substream)
 					&hw_rates);
 }
 
-struct gpio_desc *gpiod_speaker_power;
+static struct gpio_desc *gpiod_speaker_power;
 
 static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
 				struct snd_kcontrol *kcontrol, int event)

@@ -227,7 +227,7 @@ static int rx1950_probe(struct platform_device *pdev)
 	return devm_snd_soc_register_card(dev, &rx1950_asoc);
 }
 
-struct platform_driver rx1950_audio = {
+static struct platform_driver rx1950_audio = {
 	.driver = {
 		.name = "rx1950-audio",
 		.pm = &snd_soc_pm_ops,

index 4946a241e323..f86c5ebfcf91 100644
@@ -3214,6 +3214,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 {
 	struct gsm_dlci *dlci = tty->driver_data;
 	struct tty_port *port = &dlci->port;
+	struct gsm_mux *gsm = dlci->gsm;
 
 	port->count++;
 	tty_port_tty_set(port, tty);

@@ -3223,7 +3224,8 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	   a DM straight back. This is ok as that will have caused a hangup */
 	tty_port_set_initialized(port, 1);
 	/* Start sending off SABM messages */
-	gsm_dlci_begin_open(dlci);
+	if (gsm->initiator)
+		gsm_dlci_begin_open(dlci);
 	/* And wait for virtual carrier */
 	return tty_port_block_til_ready(port, tty, filp);
 }

index f86c5ebfcf91..36d5afa25fbb 100644
@@ -1524,6 +1524,8 @@ static void gsm_dlci_close(struct gsm_dlci *dlci)
 	if (debug & 8)
 		pr_debug("DLCI %d goes closed.\n", dlci->addr);
 	dlci->state = DLCI_CLOSED;
+	/* Prevent us from sending data before the link is up again */
+	dlci->constipated = true;
 	if (dlci->addr != 0) {
 		tty_port_tty_hangup(&dlci->port, false);
 		spin_lock_irqsave(&dlci->lock, flags);

@@ -1553,6 +1555,7 @@ static void gsm_dlci_open(struct gsm_dlci *dlci)
 	del_timer(&dlci->t1);
 	/* This will let a tty open continue */
 	dlci->state = DLCI_OPEN;
+	dlci->constipated = false;
 	if (debug & 8)
 		pr_debug("DLCI %d goes open.\n", dlci->addr);
 	/* Send current modem state */

@@ -1633,6 +1636,25 @@ static void gsm_dlci_begin_open(struct gsm_dlci *dlci)
 	mod_timer(&dlci->t1, jiffies + gsm->t1 * HZ / 100);
 }
 
+/**
+ *	gsm_dlci_set_opening	-	change state to opening
+ *	@dlci: DLCI to open
+ *
+ *	Change internal state to wait for DLCI open from initiator side.
+ *	We set off timers and responses upon reception of an SABM.
+ */
+static void gsm_dlci_set_opening(struct gsm_dlci *dlci)
+{
+	switch (dlci->state) {
+	case DLCI_CLOSED:
+	case DLCI_CLOSING:
+		dlci->state = DLCI_OPENING;
+		break;
+	default:
+		break;
+	}
+}
+
 /**
  *	gsm_dlci_begin_close	-	start channel open procedure
  *	@dlci: DLCI to open

@@ -1776,10 +1798,13 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
 	dlci->addr = addr;
 	dlci->adaption = gsm->adaption;
 	dlci->state = DLCI_CLOSED;
-	if (addr)
+	if (addr) {
 		dlci->data = gsm_dlci_data;
-	else
+		/* Prevent us from sending data before the link is up */
+		dlci->constipated = true;
+	} else {
 		dlci->data = gsm_dlci_command;
+	}
 	gsm->dlci[addr] = dlci;
 	return dlci;
 }

@@ -3226,6 +3251,8 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	/* Start sending off SABM messages */
 	if (gsm->initiator)
 		gsm_dlci_begin_open(dlci);
+	else
+		gsm_dlci_set_opening(dlci);
 	/* And wait for virtual carrier */
 	return tty_port_block_til_ready(port, tty, filp);
 }

index 36d5afa25fbb..9f7a638c6400 100644
@@ -235,6 +235,7 @@ struct gsm_mux {
 	struct gsm_dlci *dlci[NUM_DLCI];
 	int old_c_iflag;		/* termios c_iflag value before attach */
 	bool constipated;		/* Asked by remote to shut up */
+	bool has_devices;		/* Devices were registered */
 
 	spinlock_t tx_lock;
 	unsigned int tx_bytes;		/* TX data outstanding */

@@ -467,6 +468,68 @@ static void gsm_hex_dump_bytes(const char *fname, const u8 *data,
 	kfree(prefix);
 }
 
+/**
+ *	gsm_register_devices	-	register all tty devices for a given mux index
+ *
+ *	@driver: the tty driver that describes the tty devices
+ *	@index:  the mux number is used to calculate the minor numbers of the
+ *	         ttys for this mux and may differ from the position in the
+ *	         mux array.
+ */
+static int gsm_register_devices(struct tty_driver *driver, unsigned int index)
+{
+	struct device *dev;
+	int i;
+	unsigned int base;
+
+	if (!driver || index >= MAX_MUX)
+		return -EINVAL;
+
+	base = index * NUM_DLCI; /* first minor for this index */
+	for (i = 1; i < NUM_DLCI; i++) {
+		/* Don't register device 0 - this is the control channel
+		 * and not a usable tty interface
+		 */
+		dev = tty_register_device(gsm_tty_driver, base + i, NULL);
+		if (IS_ERR(dev)) {
+			if (debug & 8)
+				pr_info("%s failed to register device minor %u",
+					__func__, base + i);
+			for (i--; i >= 1; i--)
+				tty_unregister_device(gsm_tty_driver, base + i);
+			return PTR_ERR(dev);
+		}
+	}
+
+	return 0;
+}
+
+/**
+ *	gsm_unregister_devices	-	unregister all tty devices for a given mux index
+ *
+ *	@driver: the tty driver that describes the tty devices
+ *	@index:  the mux number is used to calculate the minor numbers of the
+ *	         ttys for this mux and may differ from the position in the
+ *	         mux array.
+ */
+static void gsm_unregister_devices(struct tty_driver *driver,
+				   unsigned int index)
+{
+	int i;
+	unsigned int base;
+
+	if (!driver || index >= MAX_MUX)
+		return;
+
+	base = index * NUM_DLCI; /* first minor for this index */
+	for (i = 1; i < NUM_DLCI; i++) {
+		/* Don't unregister device 0 - this is the control
+		 * channel and not a usable tty interface
+		 */
+		tty_unregister_device(gsm_tty_driver, base + i);
+	}
+}
+
 /**
  *	gsm_print_packet	-	display a frame for debug
  *	@hdr: header to print before decode

@@ -2256,6 +2319,10 @@ static void gsm_cleanup_mux(struct gsm_mux *gsm, bool disc)
 	del_timer_sync(&gsm->t2_timer);
 
 	/* Free up any link layer users and finally the control channel */
+	if (gsm->has_devices) {
+		gsm_unregister_devices(gsm_tty_driver, gsm->num);
+		gsm->has_devices = false;
+	}
 	for (i = NUM_DLCI - 1; i >= 0; i--)
 		if (gsm->dlci[i])
 			gsm_dlci_release(gsm->dlci[i]);

@@ -2279,6 +2346,7 @@ static void gsm_cleanup_mux(struct gsm_mux *gsm, bool disc)
 static int gsm_activate_mux(struct gsm_mux *gsm)
 {
 	struct gsm_dlci *dlci;
+	int ret;
 
 	timer_setup(&gsm->t2_timer, gsm_control_retransmit, 0);
 	init_waitqueue_head(&gsm->event);

@@ -2290,9 +2358,14 @@ static int gsm_activate_mux(struct gsm_mux *gsm)
 	else
 		gsm->receive = gsm1_receive;
 
+	ret = gsm_register_devices(gsm_tty_driver, gsm->num);
+	if (ret)
+		return ret;
+
 	dlci = gsm_dlci_alloc(gsm, 0);
 	if (dlci == NULL)
 		return -ENOMEM;
+	gsm->has_devices = true;
 	gsm->dead = false;		/* Tty opens are now permissible */
 	return 0;
 }

@@ -2552,39 +2625,14 @@ static int gsmld_output(struct gsm_mux *gsm, u8 *data, int len)
  *	will need moving to an ioctl path.
  */
 
-static int gsmld_attach_gsm(struct tty_struct *tty, struct gsm_mux *gsm)
+static void gsmld_attach_gsm(struct tty_struct *tty, struct gsm_mux *gsm)
 {
-	unsigned int base;
-	int ret, i;
-
 	gsm->tty = tty_kref_get(tty);
 	/* Turn off tty XON/XOFF handling to handle it explicitly. */
 	gsm->old_c_iflag = tty->termios.c_iflag;
 	tty->termios.c_iflag &= (IXON | IXOFF);
-	ret =  gsm_activate_mux(gsm);
-	if (ret != 0)
-		tty_kref_put(gsm->tty);
-	else {
-		/* Don't register device 0 - this is the control channel and not
-		   a usable tty interface */
-		base = mux_num_to_base(gsm); /* Base for this MUX */
-		for (i = 1; i < NUM_DLCI; i++) {
-			struct device *dev;
-
-			dev = tty_register_device(gsm_tty_driver,
-							base + i, NULL);
-			if (IS_ERR(dev)) {
-				for (i--; i >= 1; i--)
-					tty_unregister_device(gsm_tty_driver,
-								base + i);
-				return PTR_ERR(dev);
-			}
-		}
-	}
-	return ret;
 }
 
-
 /**
  *	gsmld_detach_gsm	-	stop doing 0710 mux
  *	@tty: tty attached to the mux

@@ -2595,12 +2643,7 @@ static int gsmld_attach_gsm(struct tty_struct *tty, struct gsm_mux *gsm)
 
 static void gsmld_detach_gsm(struct tty_struct *tty, struct gsm_mux *gsm)
 {
-	unsigned int base = mux_num_to_base(gsm); /* Base for this MUX */
-	int i;
-
 	WARN_ON(tty != gsm->tty);
-	for (i = 1; i < NUM_DLCI; i++)
-		tty_unregister_device(gsm_tty_driver, base + i);
 	/* Restore tty XON/XOFF handling. */
 	gsm->tty->termios.c_iflag = gsm->old_c_iflag;
 	tty_kref_put(gsm->tty);

@@ -2692,7 +2735,6 @@ static void gsmld_close(struct tty_struct *tty)
 static int gsmld_open(struct tty_struct *tty)
 {
 	struct gsm_mux *gsm;
-	int ret;
 
 	if (tty->ops->write == NULL)
 		return -EINVAL;

@@ -2708,12 +2750,11 @@ static int gsmld_open(struct tty_struct *tty)
 	/* Attach the initial passive connection */
 	gsm->encoding = 1;
 
-	ret = gsmld_attach_gsm(tty, gsm);
-	if (ret != 0) {
-		gsm_cleanup_mux(gsm, false);
-		mux_put(gsm);
-	}
-	return ret;
+	gsmld_attach_gsm(tty, gsm);
+
+	timer_setup(&gsm->t2_timer, gsm_control_retransmit, 0);
+
+	return 0;
 }
 
 /**

index 9f7a638c6400..a554c22e0ee2 100644
@@ -886,41 +886,51 @@ static int gsm_dlci_data_output(struct gsm_mux *gsm, struct gsm_dlci *dlci)
 {
 	struct gsm_msg *msg;
 	u8 *dp;
-	int len, total_size, size;
-	int h = dlci->adaption - 1;
+	int h, len, size;
 
-	total_size = 0;
-	while (1) {
-		len = kfifo_len(&dlci->fifo);
-		if (len == 0)
-			return total_size;
-
-		/* MTU/MRU count only the data bits */
-		if (len > gsm->mtu)
-			len = gsm->mtu;
-
-		size = len + h;
-
-		msg = gsm_data_alloc(gsm, dlci->addr, size, gsm->ftype);
-		/* FIXME: need a timer or something to kick this so it can't
-		   get stuck with no work outstanding and no buffer free */
-		if (msg == NULL)
-			return -ENOMEM;
-		dp = msg->data;
-		switch (dlci->adaption) {
-		case 1:	/* Unstructured */
-			break;
-		case 2:	/* Unstructed with modem bits.
-		Always one byte as we never send inline break data */
-			*dp++ = (gsm_encode_modem(dlci) << 1) | EA;
-			break;
-		}
-		WARN_ON(kfifo_out_locked(&dlci->fifo, dp , len, &dlci->lock) != len);
-		__gsm_data_queue(dlci, msg);
-		total_size += size;
+	/* for modem bits without break data */
+	h = ((dlci->adaption == 1) ? 0 : 1);
+
+	len = kfifo_len(&dlci->fifo);
+	if (len == 0)
+		return 0;
+
+	/* MTU/MRU count only the data bits but watch adaption mode */
+	if ((len + h) > gsm->mtu)
+		len = gsm->mtu - h;
+
+	size = len + h;
+
+	msg = gsm_data_alloc(gsm, dlci->addr, size, gsm->ftype);
+	/* FIXME: need a timer or something to kick this so it can't
+	 * get stuck with no work outstanding and no buffer free
+	 */
+	if (!msg)
+		return -ENOMEM;
+	dp = msg->data;
+	switch (dlci->adaption) {
+	case 1: /* Unstructured */
+		break;
+	case 2: /* Unstructured with modem bits.
+		 * Always one byte as we never send inline break data
+		 */
+		*dp++ = (gsm_encode_modem(dlci) << 1) | EA;
+		break;
+	default:
+		pr_err("%s: unsupported adaption %d\n", __func__,
+		       dlci->adaption);
+		break;
 	}
+
+	WARN_ON(len != kfifo_out_locked(&dlci->fifo, dp, len,
+		&dlci->lock));
+
+	/* Notify upper layer about available send space. */
+	tty_port_tty_wakeup(&dlci->port);
+
+	__gsm_data_queue(dlci, msg);
 	/* Bytes of data we used up */
-	return total_size;
+	return size;
 }
 
 /**

index a554c22e0ee2..271efa7ae793 100644
@@ -244,6 +244,7 @@ struct gsm_mux {
 	struct list_head tx_list;	/* Pending data packets */
 
 	/* Control messages */
+	struct timer_list kick_timer;	/* Kick TX queuing on timeout */
 	struct timer_list t2_timer;	/* Retransmit timer for commands */
 	int cretries;			/* Command retry counter */
 	struct gsm_control *pending_cmd;/* Our current pending command */

@@ -850,6 +851,7 @@ static void __gsm_data_queue(struct gsm_dlci *dlci, struct gsm_msg *msg)
 	list_add_tail(&msg->list, &gsm->tx_list);
 	gsm->tx_bytes += msg->len;
 	gsm_data_kick(gsm, dlci);
+	mod_timer(&gsm->kick_timer, jiffies + 10 * gsm->t1 * HZ / 100);
 }
 
 /**

@@ -902,9 +904,6 @@ static int gsm_dlci_data_output(struct gsm_mux *gsm, struct gsm_dlci *dlci)
 	size = len + h;
 
 	msg = gsm_data_alloc(gsm, dlci->addr, size, gsm->ftype);
-	/* FIXME: need a timer or something to kick this so it can't
-	 * get stuck with no work outstanding and no buffer free
-	 */
 	if (!msg)
 		return -ENOMEM;
 	dp = msg->data;

@@ -981,9 +980,6 @@ static int gsm_dlci_data_output_framed(struct gsm_mux *gsm,
 
 	size = len + overhead;
 	msg = gsm_data_alloc(gsm, dlci->addr, size, gsm->ftype);
-
-	/* FIXME: need a timer or something to kick this so it can't
-	   get stuck with no work outstanding and no buffer free */
 	if (msg == NULL) {
 		skb_queue_tail(&dlci->skb_list, dlci->skb);
 		dlci->skb = NULL;

@@ -1079,9 +1075,9 @@ static int gsm_dlci_modem_output(struct gsm_mux *gsm, struct gsm_dlci *dlci,
  *	renegotiate DLCI priorities with optional stuff. Needs optimising.
  */
 
-static void gsm_dlci_data_sweep(struct gsm_mux *gsm)
+static int gsm_dlci_data_sweep(struct gsm_mux *gsm)
 {
-	int len;
+	int len, ret = 0;
 	/* Priority ordering: We should do priority with RR of the groups */
 	int i = 1;
 

@@ -1104,7 +1100,11 @@ static void gsm_dlci_data_sweep(struct gsm_mux *gsm)
 		/* DLCI empty - try the next */
 		if (len == 0)
 			i++;
+		else
+			ret++;
 	}
+
+	return ret;
 }
 
 /**

@@ -1837,6 +1837,30 @@ static void gsm_dlci_command(struct gsm_dlci *dlci, const u8 *data, int len)
 	}
 }
 
+/**
+ *	gsm_kick_timer	-	transmit if possible
+ *	@t: timer contained in our gsm object
+ *
+ *	Transmit data from DLCIs if the queue is empty. We can't rely on
+ *	a tty wakeup except when we filled the pipe so we need to fire off
+ *	new data ourselves in other cases.
+ */
+static void gsm_kick_timer(struct timer_list *t)
+{
+	struct gsm_mux *gsm = from_timer(gsm, t, kick_timer);
+	unsigned long flags;
+	int sent = 0;
+
+	spin_lock_irqsave(&gsm->tx_lock, flags);
+	/* If we have nothing running then we need to fire up */
+	if (gsm->tx_bytes < TX_THRESH_LO)
+		sent = gsm_dlci_data_sweep(gsm);
+	spin_unlock_irqrestore(&gsm->tx_lock, flags);
+
+	if (sent && debug & 4)
+		pr_info("%s TX queue stalled\n", __func__);
+}
+
 /*
  *	Allocate/Free DLCI channels
  */

@@ -2326,6 +2350,7 @@ static void gsm_cleanup_mux(struct gsm_mux *gsm, bool disc)
 	}
 
 	/* Finish outstanding timers, making sure they are done */
+	del_timer_sync(&gsm->kick_timer);
 	del_timer_sync(&gsm->t2_timer);
 
 	/* Free up any link layer users and finally the control channel */

@@ -2358,6 +2383,7 @@ static int gsm_activate_mux(struct gsm_mux *gsm)
 	struct gsm_dlci *dlci;
 	int ret;
 
+	timer_setup(&gsm->kick_timer, gsm_kick_timer, 0);
 	timer_setup(&gsm->t2_timer, gsm_control_retransmit, 0);
 	init_waitqueue_head(&gsm->event);
 	spin_lock_init(&gsm->control_lock);

@@ -2762,6 +2788,7 @@ static int gsmld_open(struct tty_struct *tty)
 
 	gsmld_attach_gsm(tty, gsm);
 
+	timer_setup(&gsm->kick_timer, gsm_kick_timer, 0);
 	timer_setup(&gsm->t2_timer, gsm_control_retransmit, 0);
 
 	return 0;

index 271efa7ae793..56a3466acfc6 100644
@@ -425,6 +425,27 @@ static int gsm_read_ea(unsigned int *val, u8 c)
 	return c & EA;
 }
 
+/**
+ *	gsm_read_ea_val	-	read a value until EA
+ *	@val: variable holding value
+ *	@data: buffer of data
+ *	@dlen: length of data
+ *
+ *	Processes an EA value. Updates the passed variable and
+ *	returns the processed data length.
+ */
+static unsigned int gsm_read_ea_val(unsigned int *val, const u8 *data, int dlen)
+{
+	unsigned int len = 0;
+
+	for (; dlen > 0; dlen--) {
+		len++;
+		if (gsm_read_ea(val, *data++))
+			break;
+	}
+	return len;
+}
+
 /**
  *	gsm_encode_modem	-	encode modem data bits
  *	@dlci: DLCI to encode from

@@ -746,6 +767,37 @@ static struct gsm_msg *gsm_data_alloc(struct gsm_mux *gsm, u8 addr, int len,
 	return m;
 }
 
+/**
+ *	gsm_is_flow_ctrl_msg	-	checks if flow control message
+ *	@msg: message to check
+ *
+ *	Returns true if the given message is a flow control command of the
+ *	control channel. False is returned in any other case.
+ */
+static bool gsm_is_flow_ctrl_msg(struct gsm_msg *msg)
+{
+	unsigned int cmd;
+
+	if (msg->addr > 0)
+		return false;
+
+	switch (msg->ctrl & ~PF) {
+	case UI:
+	case UIH:
+		cmd = 0;
+		if (gsm_read_ea_val(&cmd, msg->data + 2, msg->len - 2) < 1)
+			break;
+		switch (cmd & ~PF) {
+		case CMD_FCOFF:
+		case CMD_FCON:
+			return true;
+		}
+		break;
+	}
+
+	return false;
+}
+
 /**
  *	gsm_data_kick		-	poke the queue
  *	@gsm: GSM Mux

@@ -765,7 +817,7 @@ static void gsm_data_kick(struct gsm_mux *gsm, struct gsm_dlci *dlci)
 	int len;
 
 	list_for_each_entry_safe(msg, nmsg, &gsm->tx_list, list) {
-		if (gsm->constipated && msg->addr)
+		if (gsm->constipated && !gsm_is_flow_ctrl_msg(msg))
 			continue;
 		if (gsm->encoding != 0) {
 			gsm->txframe[0] = GSM1_SOF;

index 56a3466acfc6..3f65990fc959 100644
@@ -1546,7 +1546,7 @@ static void gsm_control_retransmit(struct timer_list *t)
 	spin_lock_irqsave(&gsm->control_lock, flags);
 	ctrl = gsm->pending_cmd;
 	if (ctrl) {
-		if (gsm->cretries == 0) {
+		if (gsm->cretries == 0 || !gsm->dlci[0] || gsm->dlci[0]->dead) {
 			gsm->pending_cmd = NULL;
 			ctrl->error = -ETIMEDOUT;
 			ctrl->done = 1;

index 3f65990fc959..23fcb34240ac 100644
@@ -2911,11 +2911,24 @@ static ssize_t gsmld_read(struct tty_struct *tty, struct file *file,
 static ssize_t gsmld_write(struct tty_struct *tty, struct file *file,
 			   const unsigned char *buf, size_t nr)
 {
-	int space = tty_write_room(tty);
+	struct gsm_mux *gsm = tty->disc_data;
+	unsigned long flags;
+	int space;
+	int ret;
+
+	if (!gsm)
+		return -ENODEV;
+
+	ret = -ENOBUFS;
+	spin_lock_irqsave(&gsm->tx_lock, flags);
+	space = tty_write_room(tty);
 	if (space >= nr)
-		return tty->ops->write(tty, buf, nr);
-	set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
-	return -ENOBUFS;
+		ret = tty->ops->write(tty, buf, nr);
+	else
+		set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+	spin_unlock_irqrestore(&gsm->tx_lock, flags);
+
+	return ret;
 }
 
 /**

index 23fcb34240ac..b5ce10b0656f 100644
@@ -2435,6 +2435,10 @@ static int gsm_activate_mux(struct gsm_mux *gsm)
 	struct gsm_dlci *dlci;
 	int ret;
 
+	dlci = gsm_dlci_alloc(gsm, 0);
+	if (dlci == NULL)
+		return -ENOMEM;
+
 	timer_setup(&gsm->kick_timer, gsm_kick_timer, 0);
 	timer_setup(&gsm->t2_timer, gsm_control_retransmit, 0);
 	init_waitqueue_head(&gsm->event);

@@ -2450,9 +2454,6 @@ static int gsm_activate_mux(struct gsm_mux *gsm)
 	if (ret)
 		return ret;
 
-	dlci = gsm_dlci_alloc(gsm, 0);
-	if (dlci == NULL)
-		return -ENOMEM;
 	gsm->has_devices = true;
 	gsm->dead = false;		/* Tty opens are now permissible */
 	return 0;

index 3bd9eb3cc688..5e89d280e355 100644
@@ -880,6 +880,7 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
 	dsp_of_node = of_parse_phandle(pdev->dev.of_node, "qcom,adsp", 0);
 	if (dsp_of_node) {
 		dev_err(dev, "DSP exists and holds audio resources\n");
+		of_node_put(dsp_of_node);
 		return -EBUSY;
 	}
 

index 55bc1bb0dbbd..b28b30c69a3f 100644
@@ -17,6 +17,9 @@
 
 #include "fsl_sai.h"
 
+#define IMX_CARD_MCLK_22P5792MHZ  22579200
+#define IMX_CARD_MCLK_24P576MHZ   24576000
+
 enum codec_type {
 	CODEC_DUMMY = 0,
 	CODEC_AK5558 = 1,

@@ -353,9 +356,14 @@ static int imx_aif_hw_params(struct snd_pcm_substream *substream,
 		mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width);
 	else
 		mclk_freq = params_rate(params) * slots * slot_width;
-	/* Use the maximum freq from DSD512 (512*44100 = 22579200) */
-	if (format_is_dsd(params))
-		mclk_freq = 22579200;
+
+	if (format_is_dsd(params)) {
+		/* Use the maximum freq from DSD512 (512*44100 = 22579200) */
+		if (!(params_rate(params) % 11025))
+			mclk_freq = IMX_CARD_MCLK_22P5792MHZ;
+		else
+			mclk_freq = IMX_CARD_MCLK_24P576MHZ;
+	}
 
 	ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq,
 				     SND_SOC_CLOCK_OUT);

index b17742eac9ff..97a0c0dc4c77 100644
@@ -468,6 +468,7 @@ static int wcnss_request_irq(struct qcom_wcnss *wcnss,
 			     irq_handler_t thread_fn)
 {
 	int ret;
+	int irq_number;
 
 	ret = platform_get_irq_byname(pdev, name);
 	if (ret < 0 && optional) {

@@ -478,14 +479,19 @@ static int wcnss_request_irq(struct qcom_wcnss *wcnss,
 		return ret;
 	}
 
+	irq_number = ret;
+
 	ret = devm_request_threaded_irq(&pdev->dev, ret,
 					NULL, thread_fn,
 					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
 					"wcnss", wcnss);
-	if (ret)
+	if (ret) {
 		dev_err(&pdev->dev, "request %s IRQ failed\n", name);
+		return ret;
+	}
 
-	return ret;
+	/* Return the IRQ number if the IRQ was successfully acquired */
+	return irq_number;
 }
 
 static int wcnss_alloc_memory_region(struct qcom_wcnss *wcnss)

index 76099bcb765b..b9091e22ca57 100644
@@ -287,19 +287,11 @@ static int vfio_ccw_sch_event(struct subchannel *sch, int process)
 	if (work_pending(&sch->todo_work))
 		goto out_unlock;
 
-	if (cio_update_schib(sch)) {
-		vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_NOT_OPER);
-		rc = 0;
-		goto out_unlock;
-	}
-
-	private = dev_get_drvdata(&sch->dev);
-	if (private->state == VFIO_CCW_STATE_NOT_OPER) {
-		private->state = private->mdev ? VFIO_CCW_STATE_IDLE :
-				 VFIO_CCW_STATE_STANDBY;
-	}
 	rc = 0;
 
+	if (cio_update_schib(sch))
+		vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_NOT_OPER);
+
 out_unlock:
 	spin_unlock_irqrestore(sch->lock, flags);
 

index fc65a2293ce9..af74f82ad782 100644
@@ -81,7 +81,7 @@ int fsl8250_handle_irq(struct uart_port *port)
 	if ((lsr & UART_LSR_THRE) && (up->ier & UART_IER_THRI))
 		serial8250_tx_chars(up);
 
-	up->lsr_saved_flags = orig_lsr;
+	up->lsr_saved_flags |= orig_lsr & UART_LSR_BI;
 
 	uart_unlock_and_check_sysrq_irqrestore(&up->port, flags);
 

index b5ce10b0656f..35504e7e6a35 100644
@@ -1711,8 +1711,8 @@ static void gsm_dlci_t1(struct timer_list *t)
 
 	switch (dlci->state) {
 	case DLCI_OPENING:
-		dlci->retries--;
 		if (dlci->retries) {
+			dlci->retries--;
 			gsm_command(dlci->gsm, dlci->addr, SABM|PF);
 			mod_timer(&dlci->t1, jiffies + gsm->t1 * HZ / 100);
 		} else if (!dlci->addr && gsm->control == (DM | PF)) {

@@ -1727,8 +1727,8 @@ static void gsm_dlci_t1(struct timer_list *t)
 
 		break;
 	case DLCI_CLOSING:
-		dlci->retries--;
 		if (dlci->retries) {
+			dlci->retries--;
 			gsm_command(dlci->gsm, dlci->addr, DISC|PF);
 			mod_timer(&dlci->t1, jiffies + gsm->t1 * HZ / 100);
 		} else

index 35504e7e6a35..7a82fff7f5fe 100644
@@ -2148,7 +2148,7 @@ static void gsm_queue(struct gsm_mux *gsm)
 			goto invalid;
 #endif
 		if (dlci == NULL || dlci->state != DLCI_OPEN) {
-			gsm_command(gsm, address, DM|PF);
+			gsm_response(gsm, address, DM|PF);
 			return;
 		}
 		dlci->data(dlci, gsm->buf, gsm->len);

index 7a82fff7f5fe..b89655f585f1 100644
@@ -2954,12 +2954,15 @@ static __poll_t gsmld_poll(struct tty_struct *tty, struct file *file,
 
 	poll_wait(file, &tty->read_wait, wait);
 	poll_wait(file, &tty->write_wait, wait);
+
+	if (gsm->dead)
+		mask |= EPOLLHUP;
 	if (tty_hung_up_p(file))
 		mask |= EPOLLHUP;
+	if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
+		mask |= EPOLLHUP;
 	if (!tty_is_writelocked(tty) && tty_write_room(tty) > 0)
 		mask |= EPOLLOUT | EPOLLWRNORM;
-	if (gsm->dead)
-		mask |= EPOLLHUP;
 	return mask;
 }
 

index 3d0cf471f2fe..b2cc2c2dd4bf 100644
@@ -159,7 +159,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	/* Map GIC user page. */
 	if (gic_size) {
 		gic_base = (unsigned long)mips_gic_base + MIPS_GIC_USER_OFS;
-		gic_pfn = virt_to_phys((void *)gic_base) >> PAGE_SHIFT;
+		gic_pfn = PFN_DOWN(__pa(gic_base));
 
 		ret = io_remap_pfn_range(vma, base, gic_pfn, gic_size,
 					 pgprot_noncached(vma->vm_page_prot));

index 2ee5419649ed..e62fb7a4da69 100644
@@ -551,7 +551,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr,
 	int index;
 	phys_addr_t tlb_addr;
 
-	if (!mem)
+	if (!mem || !mem->nslabs)
 		panic("Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer");
 
 	if (mem_encrypt_active())

index 6d3d170144a0..c190628e2905 100644
@@ -675,6 +675,7 @@ static int mt6359_accdet_parse_dt(struct mt6359_accdet *priv)
 			       sizeof(struct three_key_threshold));
 	}
 
+	of_node_put(node);
 	dev_warn(priv->dev, "accdet caps=%x\n", priv->caps);
 
 	return 0;

index 2d6a4a29b850..cf1febe54bcd 100644
@@ -2780,6 +2780,7 @@ static int mt6359_parse_dt(struct mt6359_priv *priv)
 
 	ret = of_property_read_u32(np, "mediatek,mic-type-2",
 				   &priv->mux_select[MUX_MIC_TYPE_2]);
+	of_node_put(np);
 	if (ret) {
 		dev_info(priv->dev,
 			 "%s() failed to read mic-type-2, use default (%d)\n",

index 0877cf24f7de..711cf30e835a 100644
@@ -1141,16 +1141,19 @@ static int __maybe_unused brcmuart_suspend(struct device *dev)
 	struct brcmuart_priv *priv = dev_get_drvdata(dev);
 	struct uart_8250_port *up = serial8250_get_port(priv->line);
 	struct uart_port *port = &up->port;
-
-	serial8250_suspend_port(priv->line);
-	clk_disable_unprepare(priv->baud_mux_clk);
+	unsigned long flags;
 
 	/*
 	 * This will prevent resume from enabling RTS before the
-	 *  baud rate has been resored.
+	 *  baud rate has been restored.
 	 */
+	spin_lock_irqsave(&port->lock, flags);
 	priv->saved_mctrl = port->mctrl;
-	port->mctrl = 0;
+	port->mctrl &= ~TIOCM_RTS;
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	serial8250_suspend_port(priv->line);
+	clk_disable_unprepare(priv->baud_mux_clk);
 
 	return 0;
 }

@@ -1160,6 +1163,7 @@ static int __maybe_unused brcmuart_resume(struct device *dev)
 	struct brcmuart_priv *priv = dev_get_drvdata(dev);
 	struct uart_8250_port *up = serial8250_get_port(priv->line);
 	struct uart_port *port = &up->port;
+	unsigned long flags;
 	int ret;
 
 	ret = clk_prepare_enable(priv->baud_mux_clk);

@@ -1182,7 +1186,15 @@ static int __maybe_unused brcmuart_resume(struct device *dev)
 		start_rx_dma(serial8250_get_port(priv->line));
 	}
 	serial8250_resume_port(priv->line);
-	port->mctrl = priv->saved_mctrl;
+
+	if (priv->saved_mctrl & TIOCM_RTS) {
+		/* Restore RTS */
+		spin_lock_irqsave(&port->lock, flags);
+		port->mctrl |= TIOCM_RTS;
+		port->ops->set_mctrl(port, port->mctrl);
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
+
 	return 0;
 }
 

index 939ffa768986..f96acc3525e8 100644
@@ -630,7 +630,7 @@ static int exynos_sysmmu_probe(struct platform_device *pdev)
 
 	ret = iommu_device_register(&data->iommu, &exynos_iommu_ops, dev);
 	if (ret)
-		return ret;
+		goto err_iommu_register;
 
 	platform_set_drvdata(pdev, data);
 

@@ -657,6 +657,10 @@ static int exynos_sysmmu_probe(struct platform_device *pdev)
 	pm_runtime_enable(dev);
 
 	return 0;
+
+err_iommu_register:
+	iommu_device_sysfs_remove(&data->iommu);
+	return ret;
 }
 
 static int __maybe_unused exynos_sysmmu_suspend(struct device *dev)

index c381499f5416..da22415ed036 100644
@@ -123,6 +123,7 @@ static int v9fs_set_acl(struct p9_fid *fid, int type, struct posix_acl *acl)
 	char *name;
 	size_t size;
 	void *buffer;
+
 	if (!acl)
 		return 0;
 

index d43c8949e807..bc87b36f529e 100644
@@ -15,14 +15,15 @@
 #define FS_9P_ACL_H
 
 #ifdef CONFIG_9P_FS_POSIX_ACL
-extern int v9fs_get_acl(struct inode *, struct p9_fid *);
-extern struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type, bool rcu);
-extern int v9fs_acl_chmod(struct inode *, struct p9_fid *);
-extern int v9fs_set_create_acl(struct inode *, struct p9_fid *,
-			       struct posix_acl *, struct posix_acl *);
-extern int v9fs_acl_mode(struct inode *dir, umode_t *modep,
-			 struct posix_acl **dpacl, struct posix_acl **pacl);
-extern void v9fs_put_acl(struct posix_acl *dacl, struct posix_acl *acl);
+int v9fs_get_acl(struct inode *inode, struct p9_fid *fid);
+struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type,
+				   bool rcu);
+int v9fs_acl_chmod(struct inode *inode, struct p9_fid *fid);
+int v9fs_set_create_acl(struct inode *inode, struct p9_fid *fid,
+			struct posix_acl *dacl, struct posix_acl *acl);
+int v9fs_acl_mode(struct inode *dir, umode_t *modep,
+		  struct posix_acl **dpacl, struct posix_acl **pacl);
+void v9fs_put_acl(struct posix_acl *dacl, struct posix_acl *acl);
 #else
 #define v9fs_iop_get_acl NULL
 static inline int v9fs_get_acl(struct inode *inode, struct p9_fid *fid)

index 1769a44f4819..41da71320482 100644
@@ -19,8 +19,8 @@
 #define CACHETAG_LEN  11
 
 struct fscache_netfs v9fs_cache_netfs = {
-	.name 		= "9p",
-	.version 	= 0,
+	.name		= "9p",
+	.version	= 0,
 };
 
 /*

index 2e0fa7c932db..141067379f5e 100644
@@ -190,8 +190,10 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 
 	while ((p = strsep(&options, ",")) != NULL) {
 		int token, r;
+
 		if (!*p)
 			continue;
+
 		token = match_token(p, tokens, args);
 		switch (token) {
 		case Opt_debug:

@@ -659,6 +661,7 @@ static void v9fs_destroy_inode_cache(void)
 static int v9fs_cache_register(void)
 {
 	int ret;
+
 	ret = v9fs_init_inode_cache();
 	if (ret < 0)
 		return ret;

@@ -686,6 +689,7 @@ static void v9fs_cache_unregister(void)
 static int __init init_v9fs(void)
 {
 	int err;
+
 	pr_info("Installing v9fs 9p2000 file system support\n");
 	/* TODO: Setup list of registered trasnport modules */
 

index d44ade76966a..bc417da7e9c1 100644
@@ -44,9 +44,10 @@ extern struct kmem_cache *v9fs_inode_cache;
 
 struct inode *v9fs_alloc_inode(struct super_block *sb);
 void v9fs_free_inode(struct inode *inode);
-struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t);
+struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode,
+			     dev_t rdev);
 int v9fs_init_inode(struct v9fs_session_info *v9ses,
-		    struct inode *inode, umode_t mode, dev_t);
+		    struct inode *inode, umode_t mode, dev_t rdev);
 void v9fs_evict_inode(struct inode *inode);
 ino_t v9fs_qid2ino(struct p9_qid *qid);
 void v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,