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scsi: qla2xxx: Pointer may be dereferenced

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commit 00eca15319 upstream.

Klocwork tool reported pointer 'rport' returned from call to function
fc_bsg_to_rport() may be NULL and will be dereferenced.

Add a fix to validate rport before dereferencing.

Cc: stable@vger.kernel.org
Signed-off-by: Shreyas Deodhar <sdeodhar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230607113843.37185-7-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shreyas Deodhar 2023-06-07 17:08:41 +05:30 committed by Greg Kroah-Hartman
parent 541af83572
commit 0715da5139
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/qla2xxx/qla_bsg.c
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@ -2903,6 +2903,8 @@ qla24xx_bsg_request(struct bsg_job *bsg_job)
if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
rport = fc_bsg_to_rport(bsg_job);
if (!rport)
return ret;
host = rport_to_shost(rport);
vha = shost_priv(host);
} else {