linux-kernel - [PATCH linux-next] thermal: armada: use strscpy() to instead of strncpy()

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Message-ID: <202212280945491860150@zte.com.cn>
Date:   Wed, 28 Dec 2022 09:45:49 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <miquel.raynal@...tlin.com>
Cc:     <rafael@...nel.org>, <daniel.lezcano@...aro.org>,
        <amitk@...nel.org>, <rui.zhang@...el.com>,
        <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <xu.panda@....com.cn>, <yang.yang29@....com.cn>
Subject: [PATCH linux-next] thermal: armada: use strscpy() to instead of strncpy()

From: Xu Panda <xu.panda@....com.cn>

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@....com.cn>
Signed-off-by: Yang Yang <yang.yang29@....com>
---
 drivers/thermal/armada_thermal.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index 52d63b3997fe..e06a0468d95d 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -761,8 +761,7 @@ static void armada_set_sane_name(struct platform_device *pdev,
 	}

 	/* Save the name locally */
-	strncpy(priv->zone_name, name, THERMAL_NAME_LENGTH - 1);
-	priv->zone_name[THERMAL_NAME_LENGTH - 1] = '\0';
+	strscpy(priv->zone_name, name, THERMAL_NAME_LENGTH);

 	/* Then check there are no '-' or hwmon core will complain */
 	do {
-- 
2.15.2