On Wed, Jun 17, 2015 at 09:15:03AM +0200, Boris Brezillon wrote: > > Anyway, now I'm doing the following test: > > if (creq->src_nents && !ret) > return -ENOMEM;
Best not call dma_map_sg at all in the !src_nents case as I think some architectures will WARN or BUG if you give it a zero-length list. Cheers, -- Email: Herbert Xu <[email protected]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
