From fce7553b8a979a3400c237732f118cdae6b4f47b Mon Sep 17 00:00:00 2001
From: Tomas Paukrt <tomaspaukrt@email.cz>
Date: Sat, 22 Jan 2022 18:07:53 +0100
Subject: [PATCH] crypto: mxs-dcp - Fix scatterlist processing
This patch fixes a bug in scatterlist processing that may cause incorrect AES block encryption/decryption.
Fixes: 2e6d793e1bf0 ("crypto: mxs-dcp - Use sg_mapping_iter to copy data")
Signed-off-by: Tomas Paukrt <tomaspaukrt@email.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 28e9b6d8199a3f124682b143800c2dacdc3d70dd)
---
drivers/crypto/mxs-dcp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index 01d2ad7cc3841..f62d9e441ba12 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -341,7 +341,7 @@ static int mxs_dcp_aes_block_crypt(struct crypto_async_request *arq)
memset(key + AES_KEYSIZE_128, 0, AES_KEYSIZE_128);
}
- for_each_sg(req->src, src, sg_nents(src), i) {
+ for_each_sg(req->src, src, sg_nents(req->src), i) {
src_buf = sg_virt(src);
len = sg_dma_len(src);
tlen += len;
--
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