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From: Allen Pais <allen.pais@oracle.com>
To: martin.petersen@oracle.com
Cc: linux-scsi@vger.kernel.org, jejb@linux.ibm.com,
	linux-kernel@vger.kernel.org
Subject: [PATCH] qla2xxx: fix a potential NULL pointer dereference
Date: Wed, 18 Sep 2019 22:06:58 +0530	[thread overview]
Message-ID: <1568824618-4366-1-git-send-email-allen.pais@oracle.com> (raw)

alloc_workqueue is not checked for errors and as a result,
a potential NULL dereference could occur.

Signed-off-by: Allen Pais <allen.pais@oracle.com>
---
 drivers/scsi/qla2xxx/qla_os.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 98e60a3..31714c9 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3232,6 +3232,10 @@ static void qla2x00_iocb_work_fn(struct work_struct *work)
 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
 
 	ha->wq = alloc_workqueue("qla2xxx_wq", 0, 0);
+	if (unlikely(!ha->wq)) {
+		ret = -ENOMEM;
+		goto probe_failed;
+	}
 
 	if (ha->isp_ops->initialize_adapter(base_vha)) {
 		ql_log(ql_log_fatal, base_vha, 0x00d6,
-- 
1.9.1


             reply	other threads:[~2019-09-18 16:37 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-18 16:36 Allen Pais [this message]
2019-10-04  1:56 ` [PATCH] qla2xxx: fix a potential NULL pointer dereference Martin K. Petersen
2019-10-04  6:10 ` Martin Wilck
2019-10-10  2:29 ` Martin K. Petersen

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