message: Fix CID#1397945
diff: @@ -176,13 +176,18 @@ static void php_swoole_onTimeout(swTimer *timer, swTimer_node *tnode)
  swTimer_callback *cb = tnode->data;
  zval *retval = NULL;
  zval **args[1];
  - int argc = 0;
  + int argc;
  if (cb->data)
  {
  args[0] = &cb->data;
  argc = 1;
  }
  + else
  + {
  + args[0] = NULL;
  + argc = 0;
  + }
  if (sw_call_user_function_ex(EG(function_table), NULL, cb->callback, &retval, argc, args, 0, NULL TSRMLS_CC) == FAILURE)
  {
  