uninitialized variable is returned

[D:/zzz/reactos/win32ss/user/ntuser/defwnd.c:929]

if hwndParent  is NULL variable Ret is uninitialized

{

LONG Ret;

HWND hwndParent;

PWND pwndParent = IntGetParent(Wnd);

hwndParent = pwndParent ? UserHMGetHandle(pwndParent) : NULL;

if (hwndParent) Ret = co_IntSendMessage(hwndParent, WM_MOUSEACTIVATE, wParam, lParam);

if (Ret) return (Ret);

}