From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 4 Apr 2014 16:01:33 +0000 (+0200)
Subject: hwmon: (lm63) Create all sysfs groups in one call
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b76552b310645fddd76dad5e87d0e8eb3d15e4de;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

hwmon: (lm63) Create all sysfs groups in one call

We can create all sysfs groups in one call by using sysfs_create_groups
instead of using sysfs_create_group individually for each group.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
---

diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 55b7d98cb742..7dc4873b343f 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -157,6 +157,7 @@ enum chips { lm63, lm64, lm96163 };
 struct lm63_data {
 	struct device *hwmon_dev;
 	struct mutex update_lock;
+	const struct attribute_group *groups[5];
 	char valid; /* zero until following fields are valid */
 	char lut_valid; /* zero until lut fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -1116,6 +1117,7 @@ static int lm63_probe(struct i2c_client *client,
 {
 	struct device *dev = &client->dev;
 	struct lm63_data *data;
+	int groups = 0;
 	int err;
 
 	data = devm_kzalloc(dev, sizeof(struct lm63_data), GFP_KERNEL);
@@ -1135,24 +1137,19 @@ static int lm63_probe(struct i2c_client *client,
 	lm63_init_client(client);
 
 	/* Register sysfs hooks */
-	err = sysfs_create_group(&dev->kobj, &lm63_group);
-	if (err)
-		return err;
-	if (data->config & 0x04) { /* tachometer enabled */
-		err = sysfs_create_group(&dev->kobj, &lm63_group_fan1);
-		if (err)
-			goto exit_remove_files;
-	}
-	if (data->kind == lm96163) {
-		err = sysfs_create_group(&dev->kobj, &lm63_group_temp2_type);
-		if (err)
-			goto exit_remove_files;
+	data->groups[groups++] = &lm63_group;
+	if (data->config & 0x04)	/* tachometer enabled */
+		data->groups[groups++] = &lm63_group_fan1;
 
-		err = sysfs_create_group(&dev->kobj, &lm63_group_extra_lut);
-		if (err)
-			goto exit_remove_files;
+	if (data->kind == lm96163) {
+		data->groups[groups++] = &lm63_group_temp2_type;
+		data->groups[groups++] = &lm63_group_extra_lut;
 	}
 
+	err = sysfs_create_groups(&dev->kobj, data->groups);
+	if (err)
+		return err;
+
 	data->hwmon_dev = hwmon_device_register(dev);
 	if (IS_ERR(data->hwmon_dev)) {
 		err = PTR_ERR(data->hwmon_dev);
@@ -1162,12 +1159,7 @@ static int lm63_probe(struct i2c_client *client,
 	return 0;
 
 exit_remove_files:
-	sysfs_remove_group(&dev->kobj, &lm63_group);
-	sysfs_remove_group(&dev->kobj, &lm63_group_fan1);
-	if (data->kind == lm96163) {
-		sysfs_remove_group(&dev->kobj, &lm63_group_temp2_type);
-		sysfs_remove_group(&dev->kobj, &lm63_group_extra_lut);
-	}
+	sysfs_remove_groups(&dev->kobj, data->groups);
 	return err;
 }
 
@@ -1176,13 +1168,7 @@ static int lm63_remove(struct i2c_client *client)
 	struct lm63_data *data = i2c_get_clientdata(client);
 
 	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm63_group);
-	sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
-	if (data->kind == lm96163) {
-		sysfs_remove_group(&client->dev.kobj, &lm63_group_temp2_type);
-		sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut);
-	}
-
+	sysfs_remove_groups(&client->dev.kobj, data->groups);
 	return 0;
 }