crypto: mxs-dcp - Fix scatterlist processing

[ Upstream commit 28e9b6d8199a3f124682b143800c2dacdc3d70dd ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index d19e5ffb5104b953c90e771401ca5c5a3778fd48..d6f9e2fe863d771d64146b8cc203e857174c394c 100644 (file)
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -331,7 +331,7 @@ 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;