allow parameter "recved" can be null in function "rt_event_recv"

2015-11-21 20:55:41 +08:00 · 2015-11-21 20:55:41 +08:00 · 5b03e37ae1
parent 086e1bd9cb
commit 5b03e37ae1
1 changed files with 2 additions and 1 deletions
--- a/src/ipc.c
+++ b/src/ipc.c
@ -1139,7 +1139,8 @@ rt_err_t rt_event_recv(rt_event_t   event,
    if (status == RT_EOK)
    {
        /* set received event */
-        *recved = (event->set & set);
+        if (recved)
+        	*recved = (event->set & set);

        /* received event */
        if (option & RT_EVENT_FLAG_CLEAR)