Commit 95b0aa3e authored by Peter Griffin's avatar Peter Griffin Committed by Vinod Koul

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
...@@ -2422,7 +2422,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie, ...@@ -2422,7 +2422,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
enum dma_status ret; enum dma_status ret;
ret = dma_cookie_status(chan, cookie, txstate); ret = dma_cookie_status(chan, cookie, txstate);
if (ret == DMA_COMPLETE) if (ret == DMA_COMPLETE || !txstate)
return ret; return ret;
dma_set_residue(txstate, coh901318_get_bytes_left(chan)); dma_set_residue(txstate, coh901318_get_bytes_left(chan));
......
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