linux-kernel - [patch] scsi: ufs: silence uninitialized variable warning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Thu, 14 Apr 2016 12:37:03 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Vinayak Holikatti <vinholikatti@...il.com>
Cc:	"James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] scsi: ufs: silence uninitialized variable warning

If ufshcd_dme_get() fails then "tx_lanes" can be uninitialized.  I've
initialized it to zero so that the rest of the function turns into a
no-op in that situation.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index f8fa72c..6741d9e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3038,7 +3038,9 @@ static int ufshcd_hba_enable(struct ufs_hba *hba)
 
 static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer)
 {
-	int tx_lanes, i, err = 0;
+	int tx_lanes = 0;
+	int err = 0;
+	int i;
 
 	if (!peer)
 		ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES),