[RESEND PATCH v4 05/14] crypto: marvell/CESA: add TDMA support

Herbert Xu herbert at gondor.apana.org.au
Mon Jun 15 03:09:20 PDT 2015


On Fri, Jun 12, 2015 at 09:15:57AM +0200, Boris Brezillon wrote:
>
> +	ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
> +			 DMA_TO_DEVICE);
> +	if (ret < 0)

This function returns zero on error, not negative.  See
Documentation/DMA-API-HOWTO.txt for details.

Cheers,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt



More information about the linux-arm-kernel mailing list