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[PATCH 4.4 052/192] [PATCH 053/135] lpfc: Fix crash in fcp command completion path.

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  [PATCH 4.4 052/192] [PATCH 053/135] lpfc: Fix crash in fcp command completion path. Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-09-12 19:10 +0200

#1481596 — [PATCH 4.4 052/192] [PATCH 053/135] lpfc: Fix crash in fcp command completion path.

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit c90261dcd86e4eb5c9c1627fde037e902db8aefa ]

Fix crash in fcp command completion path.

Missed null check.

Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/lpfc/lpfc_scsi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3908,9 +3908,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba
 	uint32_t logit = LOG_FCP;
 
 	/* Sanity check on return of outstanding command */
-	if (!(lpfc_cmd->pCmd))
-		return;
 	cmd = lpfc_cmd->pCmd;
+	if (!cmd)
+		return;
 	shost = cmd->device->host;
 
 	lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK);

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