btrfs: return errors from btrfs_del_csums in cleanup_ref_head

We are unconditionally returning 0 in cleanup_ref_head, despite the fact
that btrfs_del_csums could fail.  We need to return the error so the
transaction gets aborted properly, fix this by returning ret from
btrfs_del_csums in cleanup_ref_head.

Reviewed-by: Qu Wenruo <wqu@suse.com>
CC: stable@vger.kernel.org # 4.19+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index f1d15b68994a040ae2540af7ceff900a76a709ae..3d5c35e4cb76e095439904c37363025dbbe2d584 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1868,7 +1868,7 @@ static int cleanup_ref_head(struct btrfs_trans_handle *trans,
        trace_run_delayed_ref_head(fs_info, head, 0);
        btrfs_delayed_ref_unlock(head);
        btrfs_put_delayed_ref_head(head);
-       return 0;
+       return ret;
 }
 
 static struct btrfs_delayed_ref_head *btrfs_obtain_ref_head(