btrfs: handle errors returned from get_tree_block_key

Signed-off-by: David Sterba <dsterba@suse.cz>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
David Sterba 2013-04-26 12:56:04 +00:00 • committed by Josef Bacik
commit 34c2b29079