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From: Denis Efremov <efremov@linux.com>
To: linux-crypto@vger.kernel.org
Cc: Denis Efremov <efremov@linux.com>,
	Corentin Labbe <clabbe.montjoie@gmail.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/4] crypto: amlogic - use kfree_sensitive()
Date: Thu, 27 Aug 2020 09:44:00 +0300	[thread overview]
Message-ID: <20200827064402.7130-3-efremov@linux.com> (raw)
In-Reply-To: <20200827064402.7130-1-efremov@linux.com>

Use kfree_sensitive() instead of open-coding it.

Signed-off-by: Denis Efremov <efremov@linux.com>
---
 drivers/crypto/amlogic/amlogic-gxl-cipher.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index d93210726697..ee5998af2fe8 100644
--- 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)
-- 
2.26.2


  parent reply	other threads:[~2020-08-27  6:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27  6:43 [PATCH v2 0/4] crypto: use kfree_sensitive() Denis Efremov
2020-08-27  6:43 ` [PATCH v2 1/4] crypto: inside-secure - " Denis Efremov
2020-08-27 14:52   ` Corentin Labbe
2020-09-02  9:02   ` Antoine Tenart
2020-09-02 13:10   ` Van Leeuwen, Pascal
2020-09-04  8:55     ` Denis Efremov
2020-09-04  9:44       ` Van Leeuwen, Pascal
2020-08-27  6:44 ` Denis Efremov [this message]
2020-08-27 14:50   ` [PATCH v2 2/4] crypto: amlogic " Corentin Labbe
2020-08-27  6:44 ` [PATCH v2 3/4] crypto: sun8i-ce " Denis Efremov
2020-08-27 14:40   ` Corentin Labbe
2020-08-27  6:44 ` [PATCH v2 4/4] crypto: sun8i-ss " Denis Efremov
2020-08-27 14:41   ` Corentin Labbe
2020-09-04  8:28 ` [PATCH v2 0/4] crypto: " Herbert Xu

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