crypto: amlogic - use kfree_sensitive()

Use kfree_sensitive() instead of open-coding it.

Signed-off-by: Denis Efremov <efremov@linux.com>
Tested-by: Corentin Labbe <clabbe@baylibre.com>
Acked-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index d932107..ee5998a 100644 (file)
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -340,10 +340,7 @@ void meson_cipher_exit(struct crypto_tfm *tfm)
 {
        struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm);
 
-       if (op->key) {
-               memzero_explicit(op->key, op->keylen);
-               kfree(op->key);
-       }
+       kfree_sensitive(op->key);
        crypto_free_skcipher(op->fallback_tfm);
 }
 
@@ -367,10 +364,7 @@ int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
                dev_dbg(mc->dev, "ERROR: Invalid keylen %u\n", keylen);
                return -EINVAL;
        }
-       if (op->key) {
-               memzero_explicit(op->key, op->keylen);
-               kfree(op->key);
-       }
+       kfree_sensitive(op->key);
        op->keylen = keylen;
        op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
        if (!op->key)