[PATCH 3/3] crypto: stm32 - use memzero_explicit() for clearing data

[Kai Ye]

use memzero_explicit instead of memset to clear sensitive data

Signed-off-by: Kai Ye <yeka...@huawei.com>
---
 drivers/crypto/stm32/stm32-cryp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c 
b/drivers/crypto/stm32/stm32-cryp.c
index 2a479317..c4297e80 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -675,7 +675,7 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, 
int err)
                crypto_finalize_skcipher_request(cryp->engine, cryp->req,
                                                   err);
 
-       memset(cryp->ctx->key, 0, cryp->ctx->keylen);
+       memzero_explicit(cryp->ctx->key, cryp->ctx->keylen);
 }
 
 static int stm32_cryp_cpu_start(struct stm32_cryp *cryp)
-- 
2.8.1