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Commit 95b0aa3e authored by Peter Griffin's avatar Peter Griffin Committed by Vinod Koul
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dmaengine: coh901318: Only calculate residue if txstate exists. 



There is no point in calculating the residue if there is no
txstate to store the value.

Signed-off-by: default avatarPeter Griffin <peter.griffin@linaro.org>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent a86144da

drivers/dma/coh901318.c

+1 −1
Original line number Diff line number Diff line
@@ -2422,7 +2422,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie, 
	enum dma_status ret;



	ret = dma_cookie_status(chan, cookie, txstate);

	if (ret == DMA_COMPLETE)

	if (ret == DMA_COMPLETE || !txstate)

		return ret;



	dma_set_residue(txstate, coh901318_get_bytes_left(chan));