From 1f107c7ee56f9f4792e5ed56e16872282c23199b Mon Sep 17 00:00:00 2001
From: Gleb Chesnokov <gleb.chesnokov@scst.dev>
Date: Mon, 10 Jul 2023 12:34:03 +0300
Subject: [PATCH] qla2x00t-32gbit: Pointer may be dereferenced

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>
[ commit 00eca15319d9 upstream ]
---
 qla2x00t-32gbit/qla_bsg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/qla2x00t-32gbit/qla_bsg.c b/qla2x00t-32gbit/qla_bsg.c
index 25de9fb4d..cc8c98d16 100644
--- a/qla2x00t-32gbit/qla_bsg.c
+++ b/qla2x00t-32gbit/qla_bsg.c
@@ -3000,6 +3000,8 @@ qla24xx_bsg_request(BSG_JOB_TYPE *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 {