fix possible NULL dereference

diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index 1268df9c1614afd217ba7fd98c85a64a7f947bb0..ecf372a43a37a521f7bdfc8225523562e8d960db 100644 (file)
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -628,7 +628,9 @@ descr_new(PyTypeObject *descrtype, PyTypeObject *type, const char *name)
             Py_DECREF(descr);
             descr = NULL;
         }
-        descr->d_qualname = NULL;
+        else {
+            descr->d_qualname = NULL;
+        }
     }
     return descr;
 }