From: Dan Carpenter <dan.carpenter@oracle.com>
To: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Hannes Reinecke <hare@suse.de>,
Bart Van Assche <bart.vanassche@sandisk.com>,
Johannes Thumshirn <jthumshirn@suse.de>,
Ewan Milne <emilne@redhat.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [patch] scsi_dh_alua: uninitialized variable in alua_rtpg()
Date: Thu, 14 Apr 2016 12:39:17 +0300 [thread overview]
Message-ID: <20160414093917.GA16891@mwanda> (raw)
It's possible to use "err" without initializing it. If it happens to be
a 2 which is SCSI_DH_RETRY then that could cause a bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 8eaed05..f3c994f 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -513,7 +513,8 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
struct alua_port_group *tmp_pg;
int len, k, off, valid_states = 0, bufflen = ALUA_RTPG_SIZE;
unsigned char *desc, *buff;
- unsigned err, retval;
+ unsigned int err = 0;
+ unsigned int retval;
unsigned int tpg_desc_tbl_off;
unsigned char orig_transition_tmo;
unsigned long flags;
next reply other threads:[~2016-04-14 9:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 9:39 Dan Carpenter [this message]
2016-04-14 15:45 ` [patch] scsi_dh_alua: uninitialized variable in alua_rtpg() Bart Van Assche
2016-04-14 18:20 ` [patch v2] " Dan Carpenter
2016-04-14 18:55 ` Bart Van Assche
2016-04-15 5:59 ` Hannes Reinecke
2016-04-15 20:26 ` Martin K. Petersen
2016-04-14 18:20 ` [patch] " Dan Carpenter
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