From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 26 Jul 2008 12:01:24 +0000 (-0300)
Subject: V4L/DVB (8505): saa7134-empress.c: fix deadlock
X-Git-Tag: v2.6.27-rc1~31^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1052efe0fc69130d9d6a44bc9ceecd229221d9a1;p=pandora-kernel.git

V4L/DVB (8505): saa7134-empress.c: fix deadlock

ts_release() locked a mutex that videobuf_stop() also tried to obtain.
But ts_release() shouldn't hold that mutex at all.

Make empress_users atomic as well to prevent possible race condition.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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