From: Colin King <colin.king@canonical.com>
To: James Smart <james.smart@broadcom.com>,
Dick Kennedy <dick.kennedy@broadcom.com>,
"James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] scsi: lpfc: fix missing spin_unlock on sql_list_lock
Date: Fri, 24 Feb 2017 14:30:15 +0000 [thread overview]
Message-ID: <20170224143015.6441-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
In the case where sglq is null, the current code just returns without
unlocking the spinlock sql_list_lock. Fix this by breaking out of the
while loop and the exit path will then unlock and return NULL as was
the original intention.
Detected by CoverityScan, CID#1411635 ("Missing unlock")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/scsi/lpfc/lpfc_sli.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 1fba5dc..40720bb 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -952,7 +952,7 @@ __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
start_sglq = sglq;
while (!found) {
if (!sglq)
- return NULL;
+ break;
if (ndlp && ndlp->active_rrqs_xri_bitmap &&
test_bit(sglq->sli4_lxritag,
ndlp->active_rrqs_xri_bitmap)) {
--
2.10.2
next reply other threads:[~2017-02-24 14:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 14:30 Colin King [this message]
2017-03-04 17:42 ` James Smart
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