crypto: amlogic - Use kmemdup in meson_aes_setkey()

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@huawei.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 e9283ff..78e776c 100644 (file)
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -372,10 +372,9 @@ int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
                kfree(op->key);
        }
        op->keylen = keylen;
-       op->key = kmalloc(keylen, GFP_KERNEL | GFP_DMA);
+       op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
        if (!op->key)
                return -ENOMEM;
-       memcpy(op->key, key, keylen);
 
        return crypto_sync_skcipher_setkey(op->fallback_tfm, key, keylen);
 }