From: Devin Heitmueller <dheitmueller@kernellabs.com>
Date: Tue, 7 Aug 2012 01:47:03 +0000 (-0300)
Subject: au0828: fix case where STREAMOFF being called on stopped stream causes BUG()
X-Git-Tag: v3.2.33~89
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ad5ca6d13f5c9c2f34f0ebc0dbea3da0e417805b;p=pandora-kernel.git

au0828: fix case where STREAMOFF being called on stopped stream causes BUG()

commit a595c1ce4c9d572cf53513570b9f1a263d7867f2 upstream.

We weren't checking whether the resource was in use before calling
res_free(), so applications which called STREAMOFF on a v4l2 device that
wasn't already streaming would cause a BUG() to be hit (MythTV).

Reported-by: Larry Finger <larry.finger@lwfinger.net>
Reported-by: Jay Harbeston <jharbestonus@gmail.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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