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dmatest: cancel thread immediately when asked for

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If user have the timeout alike issues and wants to cancel the thread
immediately, the current call of wait_event_freezable_timeout is preventing to
this until timeout is expired. Thus, user will experience the unnecessary
delays.

Adding kthread_should_stop() check inside wait_event_freezable_timeout() solves
that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2013-03-04 11:09:25 +02:00 committed by Vinod Koul
parent 9a37f64404
commit 77101ce578
1 changed files with 2 additions and 1 deletions
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3
drivers/dma/dmatest.c
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@ -454,7 +454,8 @@ static int dmatest_func(void *data)
} }
dma_async_issue_pending(chan); dma_async_issue_pending(chan);
wait_event_freezable_timeout(done_wait, done.done, wait_event_freezable_timeout(done_wait,
done.done || kthread_should_stop(),
msecs_to_jiffies(timeout)); msecs_to_jiffies(timeout));
status = dma_async_is_tx_complete(chan, cookie, NULL, NULL); status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);