From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 9 Jan 2013 12:14:48 +0000 (-0300)
Subject: [media] soc-camera: protect against racing open(2) and rmmod
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~81^2~114
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2400a1f89d329ad8948c08e6e08fef33ce42f73b;p=pandora-kernel.git

[media] soc-camera: protect against racing open(2) and rmmod

To protect against open() racing with rmmod, hold the list_lock also while
obtaining a reference to the camera host driver and check that the video
device hasn't been unregistered yet.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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