| Message ID | 20230706073719.1156288-5-thomas.bourgoin@foss.st.com |
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From: Thomas BOURGOIN <thomas.bourgoin@foss.st.com>
To: Thomas BOURGOIN <thomas.bourgoin@foss.st.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S . Miller" <davem@davemloft.net>,
Rob Herring <robh+dt@kernel.org>,
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CC: <linux-crypto@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 4/7] crypto: stm32 - fix loop iterating through scatterlist
for DMA
Date: Thu, 6 Jul 2023 09:37:16 +0200
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|
| Series |
Support of HASH on STM32MP13
|
|
Commit Message
Thomas Bourgoin
July 6, 2023, 7:37 a.m. UTC
From: Thomas Bourgoin <thomas.bourgoin@foss.st.com> We were reading the length of the scatterlist sg after copying value of tsg inside. So we are using the size of the previous scatterlist and for the first one we are using an unitialised value. Fix this by copying tsg in sg[0] before reading the size. Signed-off-by: Thomas Bourgoin <thomas.bourgoin@foss.st.com> --- drivers/crypto/stm32/stm32-hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 420df501360d..bc2651ef5208 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -678,9 +678,9 @@ static int stm32_hash_dma_send(struct stm32_hash_dev *hdev) } for_each_sg(rctx->sg, tsg, rctx->nents, i) { + sg[0] = *tsg; len = sg->length; - sg[0] = *tsg; if (sg_is_last(sg)) { if (hdev->dma_mode == 1) { len = (ALIGN(sg->length, 16) - 16);