linux-kernel - Re: [MUST-FIX] in today's Linus' git

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Message-ID: <20080122171423.GA6724@cvg>
Date:	Tue, 22 Jan 2008 20:14:23 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Guennadi Liakhovetski <g.liakhovetski@...gutronix.de>
Cc:	Sakari Ailus <sakari.ailus@...ia.com>,
	linux-kernel@...r.kernel.org, video4linux-list@...hat.com
Subject: Re: [MUST-FIX] in today's Linus' git

[Guennadi Liakhovetski - Tue, Jan 22, 2008 at 04:08:15PM +0100]
| Hi
| 
| Could someone, please, fix this:
| 
| drivers/media/video/tcm825x.c:
| 
| 853:	if (sensor->platform_data == NULL
| 854:	    && !sensor->platform_data->is_okay())
| 
| I haven't looked through the entire file, so, cannot guarantee, that this 
| is the only place. Maybe, someone could review this file and the whole 
| commit it came in with properly...
| 
| Thanks
| Guennadi
| ---
| Guennadi Liakhovetski

Hi,

i hope this help ;)

		- Cyrill -

---
From: Cyrill Gorcunov <gorcunov@...il.com>
Subject: [PATCH] driver: fix incorrect logical operator

This patch does fix potential NULL pointer dereference
due to incorrect logical operator.

The issue is pointed out by
Guennadi Liakhovetski <g.liakhovetski@...gutronix.de>

Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
---

Index: linux-2.6.git/drivers/media/video/tcm825x.c
===================================================================
--- linux-2.6.git.orig/drivers/media/video/tcm825x.c	2008-01-21 19:35:14.000000000 +0300
+++ linux-2.6.git/drivers/media/video/tcm825x.c	2008-01-22 20:07:21.000000000 +0300
@@ -851,7 +851,7 @@
 	sensor->platform_data = client->dev.platform_data;
 
 	if (sensor->platform_data == NULL
-	    && !sensor->platform_data->is_okay())
+	    || !sensor->platform_data->is_okay())
 		return -ENODEV;
 
 	sensor->v4l2_int_device = &tcm825x_int_device;
--
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