Commit 77101ce5 authored Mar 04, 2013 by Andy Shevchenko Committed by Vinod Koul Apr 15, 2013

dmatest: cancel thread immediately when asked for



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>

parent 9a37f644

drivers/dma/dmatest.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -454,7 +454,8 @@ static int dmatest_func(void *data)
		}
		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));

		status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);