| commit | 8f71f3e0e4fb5a2445fb93d3057a33aefc4aa30d | [log] [tgz] |
|---|---|---|
| author | Liu Bo <bo.li.liu@oracle.com> | Mon Mar 04 16:25:36 2013 +0000 |
| committer | Josef Bacik <jbacik@fusionio.com> | Mon Mar 04 16:33:22 2013 -0500 |
| tree | 3a138ce21038700b6cd81db196740de9657927a4 | |
| parent | 00d71c9c17b1fd28fa54f323a29a0e23c6d3de40 [diff] [blame] |
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>
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index ba5a321..16e0c6f 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c
@@ -1269,6 +1269,8 @@ } spin_unlock(&rc->reloc_root_tree.lock); + if (!node) + return 0; BUG_ON((struct btrfs_root *)node->data != root); if (!del) {