[PATCH] crypto: sun8i-ss - Fix error codes for dma_mapping_error()

[PATCH] crypto: sun8i-ss - Fix error codes for dma_mapping_error()

[Dan Carpenter]

If there is a dma_mapping_error() then return negative error codes.
Currently this code returns success.

Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index ac417a6b39e5..845019bd9591 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
@@ -586,7 +586,8 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq)
 			rctx->t_dst[k + 1].len = rctx->t_dst[k].len;
 		}
 		addr_xpad = dma_map_single(ss->dev, tfmctx->ipad, bs, DMA_TO_DEVICE);
-		if (dma_mapping_error(ss->dev, addr_xpad)) {
+		err = dma_mapping_error(ss->dev, addr_xpad);
+		if (err) {
 			dev_err(ss->dev, "Fail to create DMA mapping of ipad\n");
 			goto err_dma_xpad;
 		}
@@ -612,7 +613,8 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq)
 			goto err_dma_result;
 		}
 		addr_xpad = dma_map_single(ss->dev, tfmctx->opad, bs, DMA_TO_DEVICE);
-		if (dma_mapping_error(ss->dev, addr_xpad)) {
+		err = dma_mapping_error(ss->dev, addr_xpad);
+		if (err) {
 			dev_err(ss->dev, "Fail to create DMA mapping of opad\n");
 			goto err_dma_xpad;
 		}
-- 
2.35.1

Re: [PATCH] crypto: sun8i-ss - Fix error codes for dma_mapping_error()

[Corentin Labbe]

Le Wed, May 18, 2022 at 08:33:54PM +0300, Dan Carpenter a écrit :
> If there is a dma_mapping_error() then return negative error codes.
> Currently this code returns success.
> 
> Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-on: sun8i-a83t-bananapi-m3

Thanks

Re: [PATCH] crypto: sun8i-ss - Fix error codes for dma_mapping_error()

[Herbert Xu]

On Wed, May 18, 2022 at 08:33:54PM +0300, Dan Carpenter wrote:
> If there is a dma_mapping_error() then return negative error codes.
> Currently this code returns success.
> 
> Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
>  drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt