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dmaengine: at_hdmac: Return dma_cookie_status()'s ret code when txstate is NULL

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txstate is an optional parameter used to get a struct with auxilary
transfer status information. When not provided the call to
device_tx_status() should return the status of the dma cookie. Return the
status of dma cookie when the txstate optional parameter is not provided.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-18-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Tudor Ambarus 2022-10-25 12:02:51 +03:00 committed by Vinod Koul
parent 4c2e9ba05c
commit 83c196152f
1 changed files with 1 additions and 7 deletions
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8
drivers/dma/at_hdmac.c
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@ -1461,14 +1461,8 @@ atc_tx_status(struct dma_chan *chan,
int bytes = 0;
ret = dma_cookie_status(chan, cookie, txstate);
if (ret == DMA_COMPLETE)
if (ret == DMA_COMPLETE || !txstate)
return ret;
/*
* There's no point calculating the residue if there's
* no txstate to store the value.
*/
if (!txstate)
return DMA_ERROR;
spin_lock_irqsave(&atchan->lock, flags);