Patch "mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mmc-rtsx_usb_sdmmc-handle-runtime-pm-while-changing-the-led.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Ulf Hansson <[email protected]>
Date: Thu, 15 Sep 2016 14:46:21 +0200
Subject: mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led

From: Ulf Hansson <[email protected]>

commit 4f48aa7a11bfed9502a7c85a5b68cd40ea827f73 upstream.

Accesses of the rtsx sdmmc's parent device, which is the rtsx usb device, must be done when it's runtime resumed. Currently this isn't case when changing the led, so let's fix this by adding a pm_runtime_get_sync() and a pm_runtime_put() around those operations.

---
 drivers/mmc/host/rtsx_usb_sdmmc.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -1309,6 +1309,7 @@ static void rtsx_usb_update_led(struct w
 		container_of(work, struct rtsx_usb_sdmmc, led_work);
 	struct rtsx_ucr *ucr = host->ucr;
 
+	pm_runtime_get_sync(sdmmc_dev(host));
 	mutex_lock(&ucr->dev_mutex);
 
 	if (host->led.brightness == LED_OFF)

@@ -1317,6 +1318,7 @@ static void rtsx_usb_update_led(struct w
 		rtsx_usb_turn_on_led(ucr);
 
 	mutex_unlock(&ucr->dev_mutex);
+	pm_runtime_put(sdmmc_dev(host));
 }
 #endif
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/memstick-rtsx_usb_ms-manage-runtime-pm-when-accessing-the-device.patch queue-4.4/mmc-sdhci-cast-unsigned-int-to-unsigned-long-long-to-avoid-unexpeted-error.patch queue-4.4/mmc-core-annotate-cmd_hdr-as-__le32.patch queue-4.4/mmc-block-don-t-use-cmd23-with-very-old-mmc-cards.patch queue-4.4/memstick-rtsx_usb_ms-runtime-resume-the-device-when-polling-for-cards.patch queue-4.4/mmc-rtsx_usb_sdmmc-avoid-keeping-the-device-runtime-resumed-when-unused.patch queue-4.4/mmc-rtsx_usb_sdmmc-handle-runtime-pm-while-changing-the-led.patch