tree 3a138ce21038700b6cd81db196740de9657927a4
parent 00d71c9c17b1fd28fa54f323a29a0e23c6d3de40
author Liu Bo <bo.li.liu@oracle.com> 1362414336 +0000
committer Josef Bacik <jbacik@fusionio.com> 1362432802 -0500

Btrfs: check for NULL pointer in updating reloc roots

Add a check for NULL pointer to avoid invalid reference.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>