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

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Message-ID: <20250903083448.621694-2-fourier.thomas@gmail.com>
Date: Wed,  3 Sep 2025 10:34:46 +0200
From: Thomas Fourier <fourier.thomas@...il.com>
To: 
Cc: Thomas Fourier <fourier.thomas@...il.com>,
	stable@...r.kernel.org,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Claudiu Beznea <claudiu.beznea@...on.dev>,
	Nicolas Royer <nicolas@...rea.com>,
	Eric Bénard <eric@...rea.com>,
	linux-crypto@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] crypto: atmel - Fix dma_unmap_sg() direction

It seems like everywhere in this file, dd->in_sg is mapped with
DMA_TO_DEVICE and dd->out_sg is mapped with DMA_FROM_DEVICE.

Fixes: 13802005d8f2 ("crypto: atmel - add Atmel DES/TDES driver")
Cc: <stable@...r.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@...il.com>
---
 drivers/crypto/atmel-tdes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 098f5532f389..3b2a92029b16 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -512,7 +512,7 @@ static int atmel_tdes_crypt_start(struct atmel_tdes_dev *dd)
 
 	if (err && (dd->flags & TDES_FLAGS_FAST)) {
 		dma_unmap_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE);
-		dma_unmap_sg(dd->dev, dd->out_sg, 1, DMA_TO_DEVICE);
+		dma_unmap_sg(dd->dev, dd->out_sg, 1, DMA_FROM_DEVICE);
 	}
 
 	return err;
-- 
2.43.0