linux-kernel - [PATCH net-next 1/2] net: sfp: use hwmon_sanitize

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Date:   Wed, 22 Jun 2022 14:35:42 +0200
From:   Michael Walle <michael@...le.cc>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Guenter Roeck <linux@...ck-us.net>,
        Michael Walle <michael@...le.cc>,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: [PATCH net-next 1/2] net: sfp: use hwmon_sanitize_name()

Instead of open-coding the bad characters replacement in the hwmon name,
use the new hwmon_sanitize_name().

Signed-off-by: Michael Walle <michael@...le.cc>
Acked-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/phy/sfp.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 9a5d5a10560f..81a529c3dbe4 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1290,7 +1290,7 @@ static const struct hwmon_chip_info sfp_hwmon_chip_info = {
 static void sfp_hwmon_probe(struct work_struct *work)
 {
 	struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work);
-	int err, i;
+	int err;
 
 	/* hwmon interface needs to access 16bit registers in atomic way to
 	 * guarantee coherency of the diagnostic monitoring data. If it is not
@@ -1318,16 +1318,12 @@ static void sfp_hwmon_probe(struct work_struct *work)
 		return;
 	}
 
-	sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL);
-	if (!sfp->hwmon_name) {
+	sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev));
+	if (IS_ERR(sfp->hwmon_name)) {
 		dev_err(sfp->dev, "out of memory for hwmon name\n");
 		return;
 	}
 
-	for (i = 0; sfp->hwmon_name[i]; i++)
-		if (hwmon_is_bad_char(sfp->hwmon_name[i]))
-			sfp->hwmon_name[i] = '_';
-
 	sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev,
 							 sfp->hwmon_name, sfp,
 							 &sfp_hwmon_chip_info,
-- 
2.30.2