bpo-31787: Prevent refleaks when calling __init__() more than once (GH-3995)

1 files changed, 2 insertions, 2 deletions

diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index d376f9cab9..241685d5b7 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -709,7 +709,7 @@ cm_init(PyObject *self, PyObject *args, PyObject *kwds)
     if (!PyArg_UnpackTuple(args, "classmethod", 1, 1, &callable))
         return -1;
     Py_INCREF(callable);
-    cm->cm_callable = callable;
+    Py_XSETREF(cm->cm_callable, callable);
     return 0;
 }
 
@@ -890,7 +890,7 @@ sm_init(PyObject *self, PyObject *args, PyObject *kwds)
     if (!PyArg_UnpackTuple(args, "staticmethod", 1, 1, &callable))
         return -1;
     Py_INCREF(callable);
-    sm->sm_callable = callable;
+    Py_XSETREF(sm->sm_callable, callable);
     return 0;
 }