From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Tue, 10 Jul 2007 17:58:33 +0000 (-0300)
Subject: V4L/DVB (5842): ivtv: Add locking to ensure stream setup is atomic.
X-Git-Tag: v2.6.23-rc1~493^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f885969196da6ae905162c0d1c5f0553de12cb40;p=pandora-kernel.git

V4L/DVB (5842): ivtv: Add locking to ensure stream setup is atomic.

Starting an MPEG and VBI capture simultaneously caused errors in
the VBI setup: this setup was done twice when it should be done
only for the first stream that is opened.
Added a mutex to prevent this from happening.

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