Issue #22570: Renamed Py_SETREF to Py_XSETREF.
diff --git a/Modules/cdmodule.c b/Modules/cdmodule.c
index 9ef8727..ddb2996 100644
--- a/Modules/cdmodule.c
+++ b/Modules/cdmodule.c
@@ -629,9 +629,9 @@
                   (void *) self);
 #endif
     Py_INCREF(func);
-    Py_SETREF(self->ob_cdcallbacks[type].ob_cdcallback, func);
+    Py_XSETREF(self->ob_cdcallbacks[type].ob_cdcallback, func);
     Py_INCREF(funcarg);
-    Py_SETREF(self->ob_cdcallbacks[type].ob_cdcallbackarg, funcarg);
+    Py_XSETREF(self->ob_cdcallbacks[type].ob_cdcallbackarg, funcarg);
 
 /*
     if (type == cd_audio) {