On Tue, Sep 06, 2022 at 10:51:49AM +0800, Peter Harliman Liem wrote: > > diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c > index d68ef16650d4..3775497775e0 100644 > --- a/drivers/crypto/inside-secure/safexcel_cipher.c > +++ b/drivers/crypto/inside-secure/safexcel_cipher.c > @@ -737,14 +737,17 @@ static int safexcel_send_req(struct crypto_async_request *base, int ring, > max(totlen_src, totlen_dst)); > return -EINVAL; > } > - dma_map_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL); > + if (sreq->nr_src > 0) > + dma_map_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL); Where is the corresponding check on unmap? Thanks, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
