Btrfs: check the return value from set_anon_super

Al Viro noticed we weren't checking for set_anon_super failures. This adds the required checks. Signed-off-by: Chris Mason <[email protected]>
nrgmilk · Jun 13, 2011 · ac08aed · ac08aed
1 parent 30b4caf
commit ac08aed
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
@@ -1312,7 +1312,9 @@ struct btrfs_root *btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
 	spin_lock_init(&root->cache_lock);
 	init_waitqueue_head(&root->cache_wait);
 
-	set_anon_super(&root->anon_super, NULL);
+	ret = set_anon_super(&root->anon_super, NULL);
+	if (ret)
+		goto fail;
 
 	if (btrfs_root_refs(&root->root_item) == 0) {
 		ret = -ENOENT;