Btrfs: return error code to caller when btrfs_del_item fails

The error code is returned instead of calling BUG_ON when
btrfs_del_item returns the error.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 6928bff62daa..2cf5f5142159 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -385,7 +385,10 @@ again:
                 *sequence = btrfs_root_ref_sequence(leaf, ref);
 
                 ret = btrfs_del_item(trans, tree_root, path);
-                BUG_ON(ret);
+                if (ret) {
+                        err = ret;
+                        goto out;
+                }
         } else
                 err = -ENOENT;
 
@@ -397,6 +400,7 @@ again:
                 goto again;
         }
 
+out:
         btrfs_free_path(path);
         return err;
 }