linux-kernel - [RFC PATCH 4/5] hwmon: (gpio-fan) Convert to use hwmon_device_register

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Date:	Sat,  6 Jul 2013 10:24:54 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Jean Delvare <khali@...ux-fr.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	lm-sensors@...sensors.org, linux-kernel@...r.kernel.org,
	Guenter Roeck <linux@...ck-us.net>
Subject: [RFC PATCH 4/5] hwmon: (gpio-fan) Convert to use hwmon_device_register_groups

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/hwmon/gpio-fan.c |   23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index 3104149..7953d99 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -358,6 +358,11 @@ static const struct attribute_group gpio_fan_group = {
 	.is_visible = gpio_fan_is_visible,
 };
 
+static const struct attribute_group *gpio_fan_groups[] = {
+	&gpio_fan_group,
+	NULL
+};
+
 static int fan_ctrl_init(struct gpio_fan_data *fan_data,
 			 struct gpio_fan_platform_data *pdata)
 {
@@ -539,24 +544,15 @@ static int gpio_fan_probe(struct platform_device *pdev)
 			return err;
 	}
 
-	err = sysfs_create_group(&pdev->dev.kobj, &gpio_fan_group);
-	if (err)
-		return err;
-
 	/* Make this driver part of hwmon class. */
-	fan_data->hwmon_dev = hwmon_device_register(&pdev->dev);
-	if (IS_ERR(fan_data->hwmon_dev)) {
-		err = PTR_ERR(fan_data->hwmon_dev);
-		goto err_remove;
-	}
+	fan_data->hwmon_dev = hwmon_device_register_groups(&pdev->dev, fan_data,
+							   gpio_fan_groups);
+	if (IS_ERR(fan_data->hwmon_dev))
+		return PTR_ERR(fan_data->hwmon_dev);
 
 	dev_info(&pdev->dev, "GPIO fan initialized\n");
 
 	return 0;
-
-err_remove:
-	sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_group);
-	return err;
 }
 
 static int gpio_fan_remove(struct platform_device *pdev)
@@ -564,7 +560,6 @@ static int gpio_fan_remove(struct platform_device *pdev)
 	struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
 
 	hwmon_device_unregister(fan_data->hwmon_dev);
-	sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_group);
 
 	return 0;
 }
-- 
1.7.9.7

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