From d102cac8097c71bbbba41f4d0cdf5b509d4c64cf Mon Sep 17 00:00:00 2001
From: Changbing Xiong <cb.xiong@samsung.com>
Date: Wed, 20 Aug 2014 23:05:40 -0300
Subject: [PATCH] [media] media: check status of dmxdev->exit in poll functions
 of demux&dvr

when usb-type tuner is pulled out, user applications did not close device's FD,
and go on polling the device, we should return POLLERR directly.

Signed-off-by: Changbing Xiong <cb.xiong@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Reading git-format-patch failed