linux-kernel - [patch] scsi_dh_alua: uninitialized variable in alua_check

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Date:	Fri, 11 Mar 2016 13:17:56 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"James E.J. Bottomley" <JBottomley@...n.com>,
	Hannes Reinecke <hare@...e.de>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Bart Van Assche <bart.vanassche@...disk.com>,
	Johannes Thumshirn <jthumshirn@...e.de>,
	Ewan Milne <emilne@...hat.com>, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] scsi_dh_alua: uninitialized variable in alua_check_vpd()

The pg_updated variable is support to be set to zero at the start but
it is uninitialized.

Fixes: cb0a168cb6b8 ('scsi_dh_alua: update 'access_state' field')
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 5bcdf8d..e4f6174 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -332,7 +332,7 @@ static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h,
 {
 	int rel_port = -1, group_id;
 	struct alua_port_group *pg, *old_pg = NULL;
-	bool pg_updated;
+	bool pg_updated = 0;
 	unsigned long flags;
 
 	group_id = scsi_vpd_tpg_id(sdev, &rel_port);