diff -r 2a142141e5fd Objects/object.c
--- a/Objects/object.c	Thu Mar 08 20:58:29 2012 -0800
+++ b/Objects/object.c	Fri Mar 09 10:01:23 2012 +0000
@@ -1156,6 +1156,7 @@
         Py_INCREF(name);
 
     if (tp->tp_dict == NULL) {
+        descr = NULL;
         if (PyType_Ready(tp) < 0)
             goto done;
     }