linux-kernel - [ 07/82] [SCSI] dc395x: uninitialized variable in device

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Message-Id: <20130318042144.956545927@decadent.org.uk>
Date:	Mon, 18 Mar 2013 04:21:51 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Oliver Neukum <oliver@...kum.org>,
	James Bottomley <JBottomley@...allels.com>
Subject: [ 07/82] [SCSI] dc395x: uninitialized variable in device_alloc()

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 208afec4f3be8c51ad6eebe6611dd6d2ad2fa298 upstream.

This bug was introduced back in bitkeeper days in 2003.  We use
"dcb->dev_mode" before it has been initialized.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Oliver Neukum <oliver@...kum.org>
Signed-off-by: James Bottomley <JBottomley@...allels.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/scsi/dc395x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -3747,13 +3747,13 @@ static struct DeviceCtlBlk *device_alloc
 	dcb->max_command = 1;
 	dcb->target_id = target;
 	dcb->target_lun = lun;
+	dcb->dev_mode = eeprom->target[target].cfg0;
 #ifndef DC395x_NO_DISCONNECT
 	dcb->identify_msg =
 	    IDENTIFY(dcb->dev_mode & NTC_DO_DISCONNECT, lun);
 #else
 	dcb->identify_msg = IDENTIFY(0, lun);
 #endif
-	dcb->dev_mode = eeprom->target[target].cfg0;
 	dcb->inquiry7 = 0;
 	dcb->sync_mode = 0;
 	dcb->min_nego_period = clock_period[period_index];


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