fix

Author: Wulian233

Python/initconfig.c

@@ -512,11 +512,10 @@ _Py_COMP_DIAG_IGNORE_DEPR_DECLS
         obj = (EXPR); \
         if (obj == NULL) \
             goto fail; \
-        if (PyDict_SetItemString(dict, (KEY), obj) < 0) { \
-            Py_DECREF(obj); \
-            goto fail; \
-        } \
+        int res = PyDict_SetItemString(dict, (KEY), obj); \
         Py_DECREF(obj); \
+        if (res < 0) \
+            goto fail; \
     } while (0)
 #define SET_ITEM_INT(VAR) \
     SET_ITEM(#VAR, PyLong_FromLong(VAR))