diff mbox series

[06/33] dmaengine: at_hdmac: Return dma_cookie_status()'s ret code when txstate is NULL

Message ID 20220820125717.588722-7-tudor.ambarus@microchip.com (mailing list archive)
State Changes Requested
Headers show
Series dmaengine: at_hdmac: Fix concurrency bugs and then convert to virt-dma | expand

Commit Message

Tudor Ambarus Aug. 20, 2022, 12:56 p.m. UTC 
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>
---
 drivers/dma/at_hdmac.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 085a990f8d5d..91e53a590d5f 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1947,14 +1947,8 @@  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);