[ipc] fix IAR Compilation error
@@ -2203,7 +2203,7 @@ rt_err_t rt_mq_send_wait(rt_mq_t mq,
}
/* message queue is full */
- while ((msg = mq->msg_queue_free) == RT_NULL)
+ while ((msg = (struct rt_mq_message *)mq->msg_queue_free) == RT_NULL)
{
/* reset error number in thread */
thread->error = RT_EOK;
