[PATCH 26/27] xfs: dont ignore error code from xfs_bmbt_update

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

Fix a case in xfs_bmap_add_extent_unwritten_real where we aren't passing
the returned error on.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Alex Elder <aelder@xxxxxxx>

Index: xfs/fs/xfs/xfs_bmap.c
===================================================================
--- xfs.orig/fs/xfs/xfs_bmap.c  2011-09-10 14:51:08.181546087 -0400
+++ xfs/fs/xfs/xfs_bmap.c       2011-09-10 14:51:21.154879343 -0400
@@ -1217,10 +1217,11 @@ xfs_bmap_add_extent_unwritten_real(
                                goto done;
                        if ((error = xfs_btree_decrement(cur, 0, &i)))
                                goto done;
-                       if (xfs_bmbt_update(cur, LEFT.br_startoff,
+                       error = xfs_bmbt_update(cur, LEFT.br_startoff,
                                LEFT.br_startblock,
                                LEFT.br_blockcount + new->br_blockcount,
-                               LEFT.br_state))
+                               LEFT.br_state);
+                       if (error)
                                goto done;
                }
                break;