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
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -366,6 +366,7 @@
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 @@
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 @@
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");
@@ -1573,35 +1559,29 @@
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;
+ goto exit_restore;
}
- 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;
- }
+
+ 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)) {
@@ -1626,7 +1606,9 @@
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 @@
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);
