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move the setting next pointer to NULL out off interrupt disable.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1450 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com
2011-06-04 13:30:43 +00:00
parent ae4fa4fcbe
commit 24c5c98240
1 changed files with 2 additions and 3 deletions
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5
src/ipc.c
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@@ -1713,6 +1713,8 @@ rt_err_t rt_mq_send (rt_mq_t mq, void* buffer, rt_size_t size)
/* enable interrupt */
rt_hw_interrupt_enable(temp);
/* the msg is the new tailer of list, the next shall be NULL */
msg->next = RT_NULL;
/* copy buffer */
rt_memcpy(msg + 1, buffer, size);
@@ -1724,8 +1726,6 @@ rt_err_t rt_mq_send (rt_mq_t mq, void* buffer, rt_size_t size)
/* if the tail exists, */
((struct rt_mq_message*)mq->msg_queue_tail)->next = msg;
}
/* the msg is the new tail of list, the next shall be NULL */
msg->next = RT_NULL;
/* set new tail */
mq->msg_queue_tail = msg;
@@ -1820,7 +1820,6 @@ rt_err_t rt_mq_urgent(rt_mq_t mq, void* buffer, rt_size_t size)
rt_hw_interrupt_enable(temp);
rt_schedule();
return RT_EOK;
}