Messages in this thread Patch in this message | | | From | Peter Griffin <> | Subject | [PATCH 6/8] dmaengine: sun6i-dma: Only calculate residue if state exists. | Date | Tue, 7 Jun 2016 18:38:39 +0100 |
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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> --- drivers/dma/sun6i-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 5065ca4..3835fcd 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -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); -- 1.9.1
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