From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Wed, 3 Sep 2014 17:32:26 +0000 (-0300)
Subject: [media] dmxdev: don't use before checking file->private_data
X-Git-Tag: fixes-against-v3.18-rc2~130^2^2~283
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=313ddec45cf1a7b3778eaa9fd3acb31f994b2e88;p=pandora-kernel.git

[media] dmxdev: don't use before checking file->private_data

As reported by smatch:
	drivers/media/dvb-core/dmxdev.c:1091 dvb_demux_poll() warn: variable dereferenced before check 'dmxdevfilter' (see line 1088)

This was introduced by changeset d102cac8097c.

We need to test before using it.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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