tree aa10db576f08b2acf4b1f01ac86997311a936727
parent f48b90756bd834dda852ff514f2690d3175b1f44
author Josef Bacik <josef@redhat.com> 1264558140 +0000
committer Chris Mason <chris.mason@oracle.com> 1264713639 -0500

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>