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, 6 insertions, 4 deletions

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index a6a9d4e8b491..6e7556aa02e8 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -551,10 +551,10 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
                 ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
                 if (ret > 0) {
                         if (path->slots[0] == 0)
-                                goto out;
+                                break;
                         path->slots[0]--;
                 } else if (ret < 0) {
-                        goto out;
+                        break;
                 }
 
                 leaf = path->nodes[0];
@@ -579,7 +579,8 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
                 /* delete the entire item, it is inside our range */
                 if (key.offset >= bytenr && csum_end <= end_byte) {
                         ret = btrfs_del_item(trans, root, path);
-                        BUG_ON(ret);
+                        if (ret)
+                                goto out;
                         if (key.offset == bytenr)
                                 break;
                 } else if (key.offset < bytenr && csum_end > end_byte) {
@@ -633,9 +634,10 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
                 }
                 btrfs_release_path(root, path);
         }
+        ret = 0;
 out:
         btrfs_free_path(path);
-        return 0;
+        return ret;
 }
 
 int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,