From: Dave Young <hidave.darkstar@gmail.com>
Date: Tue, 6 Sep 2011 12:08:08 +0000 (-0300)
Subject: [media] v4l: Make sure we hold a reference to the v4l2_device before using it
X-Git-Tag: v3.1-rc9~16^2~2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=236c5441d70312242b5b32d229259930046a80e5;p=pandora-kernel.git

[media] v4l: Make sure we hold a reference to the v4l2_device before using it

v4l2_device_disconnect() calls dev_get_drvdata() and dev_set_drvdata()
on the device it received in v4l2_device_register(). Get a reference to
the device in v4l2_device_register() to make sure it won't disappear as
long as we need it.

Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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