btrfs: add missing spin_unlock to a rare exit path

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
David Sterba 2011-04-25 19:43:52 -04:00 • committed by Chris Mason
commit cfece4db11