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@xxxxxxxxxxxxxxxxxxx> 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 linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html