From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 9 Aug 2019 03:01:45 +0000 (-0700)
Subject: scsi: qla2xxx: Complain if parsing the version string fails
X-Git-Tag: v5.4-rc1~89^2~164
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6f153bcf12f4637673a24ee5393438251b82794c;p=thirdparty%2Fkernel%2Flinux.git

scsi: qla2xxx: Complain if parsing the version string fails

This patch fixes a Coverity complaint about not checking the sscanf()
return value.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c
index de696a07532ec..7ed481dd8ee6f 100644
--- a/drivers/scsi/qla2xxx/qla_tmpl.c
+++ b/drivers/scsi/qla2xxx/qla_tmpl.c
@@ -860,8 +860,9 @@ qla27xx_driver_info(struct qla27xx_fwdt_template *tmp)
 {
 	uint8_t v[] = { 0, 0, 0, 0, 0, 0 };
 
-	sscanf(qla2x00_version_str, "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu",
-	    v+0, v+1, v+2, v+3, v+4, v+5);
+	WARN_ON_ONCE(sscanf(qla2x00_version_str,
+			    "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu",
+			    v+0, v+1, v+2, v+3, v+4, v+5) != 6);
 
 	tmp->driver_info[0] = v[3] << 24 | v[2] << 16 | v[1] << 8 | v[0];
 	tmp->driver_info[1] = v[5] << 8 | v[4];