hwmon: (lm90) Create all sysfs groups in one call

Create all sysfs groups in one call by using sysfs_create_groups
instead of calling 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/lm90.c b/drivers/hwmon/lm90.c
index 07ffd10..9ad7401 100644 (file)
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -366,6 +366,7 @@ enum lm90_temp11_reg_index {
 
 struct lm90_data {
        struct device *hwmon_dev;
+       const struct attribute_group *groups[6];
        struct mutex update_lock;
        struct regulator *regulator;
        char valid; /* zero until following fields are valid */
@@ -1402,22 +1403,6 @@ static int lm90_detect(struct i2c_client *client,
        return 0;
 }
 
-static void lm90_remove_files(struct i2c_client *client, struct lm90_data *data)
-{
-       struct device *dev = &client->dev;
-
-       if (data->flags & LM90_HAVE_TEMP3)
-               sysfs_remove_group(&dev->kobj, &lm90_temp3_group);
-       if (data->flags & LM90_HAVE_EMERGENCY_ALARM)
-               sysfs_remove_group(&dev->kobj, &lm90_emergency_alarm_group);
-       if (data->flags & LM90_HAVE_EMERGENCY)
-               sysfs_remove_group(&dev->kobj, &lm90_emergency_group);
-       if (data->flags & LM90_HAVE_OFFSET)
-               sysfs_remove_group(&dev->kobj, &lm90_temp2_offset_group);
-       device_remove_file(dev, &dev_attr_pec);
-       sysfs_remove_group(&dev->kobj, &lm90_group);
-}
-
 static void lm90_restore_conf(struct i2c_client *client, struct lm90_data *data)
 {
        /* Restore initial configuration */
@@ -1528,6 +1513,7 @@ static int lm90_probe(struct i2c_client *client,
        struct i2c_adapter *adapter = to_i2c_adapter(dev->parent);
        struct lm90_data *data;
        struct regulator *regulator;
+       int groups = 0;
        int err;
 
        regulator = devm_regulator_get(dev, "vcc");
@@ -1573,36 +1559,30 @@ static int lm90_probe(struct i2c_client *client,
        lm90_init_client(client);
 
        /* Register sysfs hooks */
-       err = sysfs_create_group(&dev->kobj, &lm90_group);
-       if (err)
-               goto exit_restore;
+       data->groups[groups++] = &lm90_group;
+
+       if (data->flags & LM90_HAVE_OFFSET)
+               data->groups[groups++] = &lm90_temp2_offset_group;
+
+       if (data->flags & LM90_HAVE_EMERGENCY)
+               data->groups[groups++] = &lm90_emergency_group;
+
+       if (data->flags & LM90_HAVE_EMERGENCY_ALARM)
+               data->groups[groups++] = &lm90_emergency_alarm_group;
+
+       if (data->flags & LM90_HAVE_TEMP3)
+               data->groups[groups++] = &lm90_temp3_group;
+
        if (client->flags & I2C_CLIENT_PEC) {
                err = device_create_file(dev, &dev_attr_pec);
                if (err)
-                       goto exit_remove_files;
-       }
-       if (data->flags & LM90_HAVE_OFFSET) {
-               err = sysfs_create_group(&dev->kobj, &lm90_temp2_offset_group);
-               if (err)
-                       goto exit_remove_files;
-       }
-       if (data->flags & LM90_HAVE_EMERGENCY) {
-               err = sysfs_create_group(&dev->kobj, &lm90_emergency_group);
-               if (err)
-                       goto exit_remove_files;
-       }
-       if (data->flags & LM90_HAVE_EMERGENCY_ALARM) {
-               err = sysfs_create_group(&dev->kobj,
-                                        &lm90_emergency_alarm_group);
-               if (err)
-                       goto exit_remove_files;
-       }
-       if (data->flags & LM90_HAVE_TEMP3) {
-               err = sysfs_create_group(&dev->kobj, &lm90_temp3_group);
-               if (err)
-                       goto exit_remove_files;
+                       goto exit_restore;
        }
 
+       err = sysfs_create_groups(&dev->kobj, data->groups);
+       if (err)
+               goto exit_remove_pec;
+
        data->hwmon_dev = hwmon_device_register(dev);
        if (IS_ERR(data->hwmon_dev)) {
                err = PTR_ERR(data->hwmon_dev);
@@ -1626,7 +1606,9 @@ static int lm90_probe(struct i2c_client *client,
 exit_unregister:
        hwmon_device_unregister(data->hwmon_dev);
 exit_remove_files:
-       lm90_remove_files(client, data);
+       sysfs_remove_groups(&dev->kobj, data->groups);
+exit_remove_pec:
+       device_remove_file(dev, &dev_attr_pec);
 exit_restore:
        lm90_restore_conf(client, data);
        regulator_disable(data->regulator);
@@ -1639,7 +1621,8 @@ static int lm90_remove(struct i2c_client *client)
        struct lm90_data *data = i2c_get_clientdata(client);
 
        hwmon_device_unregister(data->hwmon_dev);
-       lm90_remove_files(client, data);
+       sysfs_remove_groups(&client->dev.kobj, data->groups);
+       device_remove_file(&client->dev, &dev_attr_pec);
        lm90_restore_conf(client, data);
        regulator_disable(data->regulator);