From b5603a943d11cd4c74e90fdd68296ffdc8f6749c Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Date: Mon, 2 Feb 2015 10:52:26 -0200
Subject: [PATCH] [media] cx231xx: don't use dev it not allocated

changeset 5eeb3014827f added a fixup at the error check
code. However, it introduced a new error:

	drivers/media/usb/cx231xx/cx231xx-cards.c:1586 cx231xx_usb_probe() error: we previously assumed 'dev' could be null (see line 1430)

This happens when dev = kmalloc() fails. So, instead of relying
on it to succeed, just change the parameter of clear_bit() from
'dev->devno' to 'nr'.

Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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