linux-kernel - [PATCH] crypto: aspeed - Fix dma_unmap

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Message-ID: <20250905115112.26309-2-fourier.thomas@gmail.com>
Date: Fri,  5 Sep 2025 13:51:11 +0200
From: Thomas Fourier <fourier.thomas@...il.com>
To: 
Cc: Thomas Fourier <fourier.thomas@...il.com>,
	stable@...r.kernel.org,
	Neal Liu <neal_liu@...eedtech.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	Dhananjay Phadke <dphadke@...ux.microsoft.com>,
	Johnny Huang <johnny_huang@...eedtech.com>,
	linux-aspeed@...ts.ozlabs.org,
	linux-crypto@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] crypto: aspeed - Fix dma_unmap_sg() direction

It seems like everywhere in this file, when the request is not
bidirectional, req->src is mapped with DMA_TO_DEVICE and req->src is
mapped with DMA_FROM_DEVICE.

Fixes: 62f58b1637b7 ("crypto: aspeed - add HACE crypto driver")
Cc: <stable@...r.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@...il.com>
---
 drivers/crypto/aspeed/aspeed-hace-crypto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/aspeed/aspeed-hace-crypto.c b/drivers/crypto/aspeed/aspeed-hace-crypto.c
index a72dfebc53ff..fa201dae1f81 100644
--- a/drivers/crypto/aspeed/aspeed-hace-crypto.c
+++ b/drivers/crypto/aspeed/aspeed-hace-crypto.c
@@ -346,7 +346,7 @@ static int aspeed_sk_start_sg(struct aspeed_hace_dev *hace_dev)
 
 	} else {
 		dma_unmap_sg(hace_dev->dev, req->dst, rctx->dst_nents,
-			     DMA_TO_DEVICE);
+			     DMA_FROM_DEVICE);
 		dma_unmap_sg(hace_dev->dev, req->src, rctx->src_nents,
 			     DMA_TO_DEVICE);
 	}
-- 
2.43.0