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[DeviceDrivers]Reset dataqueue waiting_lwm flag when suspended_push_list is empty

This commit is contained in:
armink 2016-10-31 08:39:49 +08:00
parent bda6543305
commit 0970cf03a4
1 changed files with 2 additions and 2 deletions
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4
components/drivers/src/dataqueue.c
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@ -20,6 +20,7 @@
* Change Logs: * Change Logs:
* Date Author Notes * Date Author Notes
* 2012-09-30 Bernard first version. * 2012-09-30 Bernard first version.
* 2016-10-31 armink fix some resume push and pop thread bugs
*/ */
#include <rtthread.h> #include <rtthread.h>
@ -220,8 +221,6 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
if ((queue->waiting_lwm == RT_TRUE) && if ((queue->waiting_lwm == RT_TRUE) &&
(queue->put_index - queue->get_index) <= queue->lwm) (queue->put_index - queue->get_index) <= queue->lwm)
{ {
queue->waiting_lwm = RT_FALSE;
/* /*
* there is at least one thread in suspended list * there is at least one thread in suspended list
* and less than low water mark * and less than low water mark
@ -242,6 +241,7 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
} }
else else
{ {
queue->waiting_lwm = RT_FALSE;
rt_hw_interrupt_enable(level); rt_hw_interrupt_enable(level);
} }