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Commit 9704efaa authored by Viresh Kumar's avatar Viresh Kumar Committed by Vinod Koul
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dmaengine/dmatest: Terminate transfers on all channels in case of error or exit 



In case, some error occurs while doing memcpy transfers, we must terminate all
transfers physically too. This is achieved by calling device_control() routine
with TERMINATE_ALL as parameter.

This is also required to be done in case module is removed while we are in
middle of some transfers.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@st.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 90b44f8f

drivers/dma/dmatest.c

+6 −0
Original line number Diff line number Diff line
@@ -477,6 +477,8 @@ err_srcs: 
	pr_notice("%s: terminating after %u tests, %u failures (status %d)\n",

			thread_name, total_tests, failed_tests, ret);



	/* terminate all transfers on specified channels */

	chan->device->device_control(chan, DMA_TERMINATE_ALL, 0);

	if (iterations > 0)

		while (!kthread_should_stop()) {

			DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wait_dmatest_exit);
@@ -499,6 +501,10 @@ static void dmatest_cleanup_channel(struct dmatest_chan *dtc) 
		list_del(&thread->node);

		kfree(thread);

	}



	/* terminate all transfers on specified channels */

	dtc->chan->device->device_control(dtc->chan, DMA_TERMINATE_ALL, 0);



	kfree(dtc);

}