From bbc62a18b6d90da702d14f0d04f67de1e37ca790 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 9 Aug 2014 23:14:20 -0300
Subject: [PATCH] [media] au0828: fix checks if dvb is initialized

dev->dvb is always not null, as it is an area at the dev
memory. So, checking if (dev->dvb) is always true.

Instead of this stupid check, what the code wants to do is
to know if the DVB was successully registered.

Fix it by checking, instead, for dvb->frontend. It should
also be sure that this var will be NULL if the device was
not properly initialized.

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