1 files changed, 2 insertions, 1 deletions
diff --git a/src/ipc.c b/src/ipc.c
index b97ba3008e..496ebf5bce 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -1320,8 +1320,9 @@ rt_err_t rt_mb_send_wait (rt_mailbox_t mb, rt_uint32_t value, rt_int32_t timeout
 	rt_uint32_t tick_delta;
 
 	/* parameter check */
-	RT_ASSERT(mb != RT_NULL);
+	RT_ASSERT(mb != RT_NULL);
 
+	tick_delta = 0;
 	RT_OBJECT_HOOK_CALL(rt_object_put_hook, (&(mb->parent.parent)));
 
 	/* disable interrupt */