[ipc] fix IAR Compilation error

enkiller · enkiller · commit be864bcdd11e · 2021-02-20T20:44:46.000+08:00
diff --git a/src/ipc.c b/src/ipc.c
@@ -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;

Original file line number	Diff line number	Diff line change
`@@ -2203,7 +2203,7 @@ rt_err_t rt_mq_send_wait(rt_mq_t mq,`
`2203`	`2203`	`}`
`2204`	`2204`
`2205`	`2205`	`/* message queue is full */`
`2206`		`- while ((msg = mq->msg_queue_free) == RT_NULL)`
	`2206`	`+ while ((msg = (struct rt_mq_message *)mq->msg_queue_free) == RT_NULL)`
`2207`	`2207`	`{`
`2208`	`2208`	`/* reset error number in thread */`
`2209`	`2209`	`thread->error = RT_EOK;`