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scsi: qla2xxx: Avoid fcport pointer dereference 

Klocwork reported warning of NULL pointer may be dereferenced.  The routine
exits when sa_ctl is NULL and fcport is allocated after the exit call thus
causing NULL fcport pointer to dereference at the time of exit.

To avoid fcport pointer dereference, exit the routine when sa_ctl is NULL.

Cc: stable@vger.kernel.org
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230607113843.37185-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Nilesh Javali 2023-06-07 17:08:38 +05:30 committed by Martin K. Petersen
parent 464ea494a4
commit 6b504d0697
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/qla2xxx/qla_edif.c
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@ -2361,8 +2361,8 @@ qla24xx_issue_sa_replace_iocb(scsi_qla_host_t *vha, struct qla_work_evt *e)
if (!sa_ctl) {
ql_dbg(ql_dbg_edif, vha, 0x70e6,
"sa_ctl allocation failed\n");
rval = -ENOMEM;
goto done;
rval = -ENOMEM;
return rval;
}
fcport = sa_ctl->fcport;