Patch "scsi: qla2xxx: Fix crashes in qla2x00_probe_one on probe failure" has been added to the 4.15-stable tree

@@ -449,7 +449,7 @@ static int qla2x00_alloc_queues(struct q
 	ha->req_q_map[0] = req;
 	set_bit(0, ha->rsp_qid_map);
 	set_bit(0, ha->req_qid_map);
-	return 1;
+	return 0;
 
 fail_qpair_map:
 	kfree(ha->base_qpair);

@@ -466,6 +466,9 @@ fail_req_map:
 
 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 {
+	if (!ha->req_q_map)
+		return;
+
 	if (IS_QLAFX00(ha)) {
 		if (req && req->ring_fx00)
 			dma_free_coherent(&ha->pdev->dev,

@@ -476,14 +479,17 @@ static void qla2x00_free_req_que(struct
 		(req->length + 1) * sizeof(request_t),
 		req->ring, req->dma);
 
-	if (req)
+	if (req) {
 		kfree(req->outstanding_cmds);
-
-	kfree(req);
+		kfree(req);
+	}
 }
 
 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 {
+	if (!ha->rsp_q_map)
+		return;
+
 	if (IS_QLAFX00(ha)) {
 		if (rsp && rsp->ring)
 			dma_free_coherent(&ha->pdev->dev,

@@ -494,7 +500,8 @@ static void qla2x00_free_rsp_que(struct
 		(rsp->length + 1) * sizeof(response_t),
 		rsp->ring, rsp->dma);
 	}
-	kfree(rsp);
+	if (rsp)
+		kfree(rsp);
 }
 
 static void qla2x00_free_queues(struct qla_hw_data *ha)

@@ -1717,6 +1724,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *
 	struct qla_tgt_cmd *cmd;
 	uint8_t trace = 0;
 
+	if (!ha->req_q_map)
+		return;
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	for (que = 0; que < ha->max_req_queues; que++) {
 		req = ha->req_q_map[que];

@@ -3071,14 +3080,14 @@ qla2x00_probe_one(struct pci_dev *pdev,
 	/* Set up the irqs */
 	ret = qla2x00_request_irqs(ha, rsp);
 	if (ret)
-		goto probe_hw_failed;
+		goto probe_failed;
 
 	/* Alloc arrays of request and response ring ptrs */
-	if (!qla2x00_alloc_queues(ha, req, rsp)) {
+	if (qla2x00_alloc_queues(ha, req, rsp)) {
 		ql_log(ql_log_fatal, base_vha, 0x003d,
 		    "Failed to allocate memory for queue pointers..."
 		    "aborting.\n");
-		goto probe_init_failed;
+		goto probe_failed;
 	}
 
 	if (ha->mqenable && shost_use_blk_mq(host)) {

@@ -3363,15 +3372,6 @@ skip_dpc:
 
 	return 0;
 
-probe_init_failed:
-	qla2x00_free_req_que(ha, req);
-	ha->req_q_map[0] = NULL;
-	clear_bit(0, ha->req_qid_map);
-	qla2x00_free_rsp_que(ha, rsp);
-	ha->rsp_q_map[0] = NULL;
-	clear_bit(0, ha->rsp_qid_map);
-	ha->max_req_queues = ha->max_rsp_queues = 0;
-
 probe_failed:
 	if (base_vha->timer_active)
 		qla2x00_stop_timer(base_vha);

@@ -4451,11 +4451,17 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 	if (ha->init_cb)
 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
 			ha->init_cb, ha->init_cb_dma);
-	vfree(ha->optrom_buffer);
-	kfree(ha->nvram);
-	kfree(ha->npiv_info);
-	kfree(ha->swl);
-	kfree(ha->loop_id_map);
+
+	if (ha->optrom_buffer)
+		vfree(ha->optrom_buffer);
+	if (ha->nvram)
+		kfree(ha->nvram);
+	if (ha->npiv_info)
+		kfree(ha->npiv_info);
+	if (ha->swl)
+		kfree(ha->swl);
+	if (ha->loop_id_map)
+		kfree(ha->loop_id_map);
 
 	ha->srb_mempool = NULL;
 	ha->ctx_mempool = NULL;

@@ -4471,6 +4477,15 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 	ha->ex_init_cb_dma = 0;
 	ha->async_pd = NULL;
 	ha->async_pd_dma = 0;
+	ha->loop_id_map = NULL;
+	ha->npiv_info = NULL;
+	ha->optrom_buffer = NULL;
+	ha->swl = NULL;
+	ha->nvram = NULL;
+	ha->mctp_dump = NULL;
+	ha->dcbx_tlv = NULL;
+	ha->xgmac_data = NULL;
+	ha->sfp_data = NULL;
 
 	ha->s_dma_pool = NULL;
 	ha->dl_dma_pool = NULL;