From: Josef Bacik <josef@redhat.com>
Date: Wed, 27 Jan 2010 02:09:00 +0000 (+0000)
Subject: Btrfs: check return value of open_bdev_exclusive properly
X-Git-Tag: v2.6.33-rc6~4^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f59203abeaf18bf3497b308891f95a4489810ad;p=pandora-kernel.git

Btrfs: check return value of open_bdev_exclusive properly

Hit this problem while testing RAID1 failure stuff.  open_bdev_exclusive
returns ERR_PTR(), not NULL.  So change the return value properly.  This
is important if you accidently specify a device that doesn't exist when
trying to add a new device to an array, you will panic the box
dereferencing bdev.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

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