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dmaengine: ste_dma40: Only calculate residue if txstate exists.
There is no point calculating the residue if there is no txstate to store the value. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -2588,7 +2588,7 @@ static enum dma_status d40_tx_status(struct dma_chan *chan,
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}
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ret = dma_cookie_status(chan, cookie, txstate);
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if (ret != DMA_COMPLETE)
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if (ret != DMA_COMPLETE && txstate)
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dma_set_residue(txstate, stedma40_residue(chan));
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if (d40_is_paused(d40c))
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