[PATCH] crypto: starfive - use scatterlist length before DMA mapping

[PATCH] crypto: starfive - use scatterlist length before DMA mapping

[Thorsten Blum]

Using sg_dma_len() is only valid after mapping a scatterlist with
dma_map_sg(). However, starfive_aes_aead_do_one_req() uses it before
mapping the scatterlist.

Use the original scatterlist length because the DMA length has not been
populated yet when CONFIG_NEED_SG_DMA_LENGTH=y.

Fixes: 7467147ef9bf ("crypto: starfive - Use dma for aes requests")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 drivers/crypto/starfive/jh7110-aes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/starfive/jh7110-aes.c b/drivers/crypto/starfive/jh7110-aes.c
index a0713aa21250..f59adb2a5651 100644
--- a/drivers/crypto/starfive/jh7110-aes.c
+++ b/drivers/crypto/starfive/jh7110-aes.c
@@ -677,7 +677,7 @@ static int starfive_aes_aead_do_one_req(struct crypto_engine *engine, void *areq
 
 	if (cryp->total_in)
 		sg_zero_buffer(rctx->in_sg, sg_nents(rctx->in_sg),
-			       sg_dma_len(rctx->in_sg) - cryp->total_in,
+			       rctx->in_sg->length - cryp->total_in,
 			       cryp->total_in);
 
 	ctx->rctx = rctx;