linux-kernel - [PATCH] crypto: essiv: remove redundant null pointer check before kfree

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Message-ID: <1573887060-100725-1-git-send-email-chenwandun@huawei.com>
Date:   Sat, 16 Nov 2019 14:51:00 +0800
From:   Chen Wandun <chenwandun@...wei.com>
To:     <herbert@...dor.apana.org.au>, <davem@...emloft.net>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <chenwandun@...wei.com>
Subject: [PATCH] crypto: essiv: remove redundant null pointer check before kfree

kfree has taken null pointer check into account. so it is safe to
remove the unnecessary check.

Signed-off-by: Chen Wandun <chenwandun@...wei.com>
---
 crypto/essiv.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crypto/essiv.c b/crypto/essiv.c
index efea5af..75d810d 100644
--- a/crypto/essiv.c
+++ b/crypto/essiv.c
@@ -188,8 +188,7 @@ static void essiv_aead_done(struct crypto_async_request *areq, int err)
 	struct aead_request *req = areq->data;
 	struct essiv_aead_request_ctx *rctx = aead_request_ctx(req);
 
-	if (rctx->assoc)
-		kfree(rctx->assoc);
+	kfree(rctx->assoc);
 	aead_request_complete(req, err);
 }
 
-- 
2.7.4