From df57b9014c07fbb3afdc33c1dc94c55c2dba0359 Mon Sep 17 00:00:00 2001
From: Bernard Xiong <bernard.xiong@gmail.com>
Date: Thu, 19 Dec 2019 08:06:53 +0800
Subject: [PATCH] Update thread.c

---
 src/thread.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/thread.c b/src/thread.c
index 95f9f76f8..041dfab87 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -543,6 +543,8 @@ rt_err_t rt_thread_delay_util(rt_tick_t *tick, rt_tick_t inc_tick)
     register rt_base_t level;
     struct rt_thread *thread;
 
+    RT_ASSERT(tick != RT_NULL);
+
     /* set to current thread */
     thread = rt_thread_self();
     RT_ASSERT(thread != RT_NULL);
@@ -567,9 +569,6 @@ rt_err_t rt_thread_delay_util(rt_tick_t *tick, rt_tick_t inc_tick)
 
         rt_schedule();
 
-        /* get the wakeup tick */
-        *tick = rt_tick_get();
-
         /* clear error number of this thread to RT_EOK */
         if (thread->error == -RT_ETIMEOUT)
         {
@@ -581,6 +580,9 @@ rt_err_t rt_thread_delay_util(rt_tick_t *tick, rt_tick_t inc_tick)
         rt_hw_interrupt_enable(level);
     }
 
+    /* get the wakeup tick */
+    *tick = rt_tick_get();
+
     return RT_EOK;
 }
 RTM_EXPORT(rt_thread_delay_util);
-- 
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