Issue #29392: Prevent crash when passing invalid arguments into msvcrt module.

1 files changed, 5 insertions, 3 deletions

diff --git a/Modules/clinic/_opcode.c.h b/Modules/clinic/_opcode.c.h
index a5f644265a..513cbfdad8 100644
--- a/Modules/clinic/_opcode.c.h
+++ b/Modules/clinic/_opcode.c.h
@@ -23,14 +23,16 @@ _opcode_stack_effect(PyObject *module, PyObject *args)
     int _return_value;
 
     if (!PyArg_ParseTuple(args, "i|O:stack_effect",
-        &opcode, &oparg))
+        &opcode, &oparg)) {
         goto exit;
+    }
     _return_value = _opcode_stack_effect_impl(module, opcode, oparg);
-    if ((_return_value == -1) && PyErr_Occurred())
+    if ((_return_value == -1) && PyErr_Occurred()) {
         goto exit;
+    }
     return_value = PyLong_FromLong((long)_return_value);
 
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=984d6de140303d10 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=4d91c6a765097853 input=a9049054013a1b77]*/