[PATCH 2/3] crypto: qce - 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/qce/sha.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index 61c418c..cb9b3da 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c
@@ -415,6 +415,7 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, 
const u8 *key,
 
        ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
 
+       memzero_explicit(buf, keylen + QCE_MAX_ALIGN_SIZE);
        kfree(buf);
 err_free_req:
        ahash_request_free(req);
-- 
2.8.1