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scsi: qla2xxx: fix a potential NULL pointer dereference

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commit 35a79a63517981a8aea395497c548776347deda8 upstream.

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

Link: https://lore.kernel.org/r/1568824618-4366-1-git-send-email-allen.pais@oracle.com
Signed-off-by: Allen Pais <allen.pais@oracle.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[Ajay: Modified to apply on v4.14.y]
Signed-off-by: Ajay Kaher <akaher@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Allen Pais 2019-09-18 22:06:58 +05:30 committed by Greg Kroah-Hartman
parent 800f71280e
commit 2011a54b61
1 changed files with 4 additions and 0 deletions
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4
drivers/scsi/qla2xxx/qla_os.c
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@ -3178,6 +3178,10 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
base_vha->mgmt_svr_loop_id, host->sg_tablesize);
ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
if (unlikely(!ha->wq)) {
ret = -ENOMEM;
goto probe_failed;
}
if (ha->mqenable) {
bool mq = false;