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scsi: qla2xxx: Check valid rport returned by fc_bsg_to_rport()

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commit af73f23a27206ffb3c477cac75b5fcf03410556e upstream.

Klocwork reported warning of rport maybe NULL and will be dereferenced.
rport returned by call to fc_bsg_to_rport() could be NULL and dereferenced.

Check valid rport returned by fc_bsg_to_rport().

Cc: stable@vger.kernel.org
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230607113843.37185-5-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:
Nilesh Javali 2023-06-07 17:08:39 +05:30 committed by Greg Kroah-Hartman
parent 2bea9c1c98
commit 921d684462
1 changed files with 4 additions and 0 deletions
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4
drivers/scsi/qla2xxx/qla_bsg.c
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@ -268,6 +268,10 @@ qla2x00_process_els(struct bsg_job *bsg_job)
if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
rport = fc_bsg_to_rport(bsg_job);
if (!rport) {
rval = -ENOMEM;
goto done;
}
fcport = *(fc_port_t **) rport->dd_data;
host = rport_to_shost(rport);
vha = shost_priv(host);