linux-kernel - [PATCH -next] drivers: w1: use kfree

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Message-ID: <20220511064954.3401381-1-yangyingliang@huawei.com>
Date:   Wed, 11 May 2022 14:49:54 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-hwmon@...r.kernel.org>
CC:     <zbr@...emap.net>, <jdelvare@...e.com>, <linux@...ck-us.net>,
        <gregkh@...uxfoundation.org>
Subject: [PATCH -next] drivers: w1: use kfree_sensitive()

Use kfree_sensitive() instead of open-coding it.

Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/w1/w1.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index f2ae2e563dc5..a0a6c3c739d9 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -73,8 +73,7 @@ static void w1_master_release(struct device *dev)
 	struct w1_master *md = dev_to_w1_master(dev);
 
 	dev_dbg(dev, "%s: Releasing %s.\n", __func__, md->name);
-	memset(md, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
-	kfree(md);
+	kfree_sensitive(md);
 }
 
 static void w1_slave_release(struct device *dev)
-- 
2.25.1