Commit b9ab9d10 authored Jun 07, 2016 by Peter Griffin Committed by Vinod Koul Jun 21, 2016

dmaengine: sun6i-dma: Only calculate residue if state exists.



There is no point in calculating the residue if state does not
exist to store the value.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent a90e56e5

drivers/dma/sun6i-dma.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -865,7 +865,7 @@ static enum dma_status sun6i_dma_tx_status(struct dma_chan *chan,
		size_t bytes = 0;

		ret = dma_cookie_status(chan, cookie, state);
		if (ret == DMA_COMPLETE)
		if (ret == DMA_COMPLETE \|\| !state)
		return ret;

		spin_lock_irqsave(&vchan->vc.lock, flags);