From: Steve Glendinning <steve.glendinning@shawell.net>
Date: Wed, 28 Nov 2012 17:46:58 +0000

-		check_warn_return(ret, "Error reading WUCSR\n");
+		check_warn_goto_done(ret, "Error reading WUCSR\n");

This is just another example of how error prone these macros
are, kill them.