linux-kernel - [patch] video/au0828: off by one bug

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Message-ID: <20100328112118.GI5069@bicker>
Date:	Sun, 28 Mar 2010 14:21:18 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Mauro Carvalho Chehab <mchehab@...radead.org>
Cc:	Devin Heitmueller <dheitmueller@...nellabs.com>,
	Michael Krufky <mkrufky@...uxtv.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Hans Verkuil <hverkuil@...all.nl>, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] video/au0828: off by one bug

The "AUVI_INPUT(tmp)" macro uses "tmp" as an index of an array with
AU0828_MAX_INPUT elements.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
index dc67bc4..19a5773 100644
--- a/drivers/media/video/au0828/au0828-video.c
+++ b/drivers/media/video/au0828/au0828-video.c
@@ -1104,7 +1104,7 @@ static int vidioc_enum_input(struct file *file, void *priv,
 
 	tmp = input->index;
 
-	if (tmp > AU0828_MAX_INPUT)
+	if (tmp >= AU0828_MAX_INPUT)
 		return -EINVAL;
 	if (AUVI_INPUT(tmp).type == 0)
 		return -EINVAL;
--
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