From 23ff6043add670713bbf2f6ee5d520459cfdfae9 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@skynet.be>
Date: Thu, 4 Jun 2009 09:26:39 -0300
Subject: [PATCH] V4L/DVB (11945): uvcvideo: Don't accept to change the format
 when buffers are allocated.

Setting a new frame format or size will likely change the buffer size required
to store a complete video frame. To avoid a buffer overflow, don't allow
VIDIOC_S_FMT calls when video buffers are already allocated.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Reading git-format-patch failed