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crypto: sun8i-ss - use kfree_sensitive() 

Use kfree_sensitive() instead of open-coding it.

Signed-off-by: Denis Efremov <efremov@linux.com>
Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Denis Efremov 2020-08-27 09:44:02 +03:00 committed by Herbert Xu
parent 712d806957
commit ede13285bb
1 changed files with 3 additions and 12 deletions
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15
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
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@ -368,10 +368,7 @@ void sun8i_ss_cipher_exit(struct crypto_tfm *tfm)
{ {
struct sun8i_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm); struct sun8i_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm);
if (op->key) { kfree_sensitive(op->key);
memzero_explicit(op->key, op->keylen);
kfree(op->key);
}
crypto_free_skcipher(op->fallback_tfm); crypto_free_skcipher(op->fallback_tfm);
pm_runtime_put_sync(op->ss->dev); pm_runtime_put_sync(op->ss->dev);
} }
@ -393,10 +390,7 @@ int sun8i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen); dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);
return -EINVAL; return -EINVAL;
} }
if (op->key) { kfree_sensitive(op->key);
memzero_explicit(op->key, op->keylen);
kfree(op->key);
}
op->keylen = keylen; op->keylen = keylen;
op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA); op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
if (!op->key) if (!op->key)
@ -419,10 +413,7 @@ int sun8i_ss_des3_setkey(struct crypto_skcipher *tfm, const u8 *key,
return -EINVAL; return -EINVAL;
} }
if (op->key) { kfree_sensitive(op->key);
memzero_explicit(op->key, op->keylen);
kfree(op->key);
}
op->keylen = keylen; op->keylen = keylen;
op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA); op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
if (!op->key) if (!op->key)