From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Wed, 16 Nov 2011 18:09:40 +0000 (-0300)
Subject: [media] media: vb2: fix queueing of userptr buffers with null buffer pointer
X-Git-Tag: v3.3-rc1~48^2~380
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0b7c7fc6f15e823cb4a5d225d9ef28b884ab6ec;p=pandora-kernel.git

[media] media: vb2: fix queueing of userptr buffers with null buffer pointer

Heuristic that checks if the memory pointer has been changed lacked a check
if the pointer was actually provided by the userspace, what allowed one to
queue a NULL pointer which was accepted without further checking. This
patch fixes this issue.

Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

Reading git-diff-tree failed