From: Thomas Fourier <fourier.thomas@gmail.com>
Date: Wed, 3 Sep 2025 08:34:46 +0000 (+0200)
Subject: crypto: atmel - Fix dma_unmap_sg() direction
X-Git-Tag: v6.12.54~151
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f037ab3dd49cac8f9a0b87f8406b0a018c2d0684;p=thirdparty%2Fkernel%2Fstable.git

crypto: atmel - Fix dma_unmap_sg() direction

commit f5d643156ef62216955c119216d2f3815bd51cb1 upstream.

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@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index dcc2380a5889f..d15b2e943447e 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;