[XFS] getattr can return an error code, so propogate any from lower

layers.

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:26095a
Signed-off-by: NNathan Scott <nathans@sgi.com>

fs/xfs/linux-2.6/xfs_iops.c

@@ -643,7 +643,7 @@ xfs_vn_getattr(
 		error = vn_revalidate(vp);
 	if (!error)
 		generic_fillattr(inode, stat);
-	return 0;
+	return -error;
 }
 
 STATIC int