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

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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>
This commit is contained in:
Guenter Roeck 2014-04-04 18:01:35 +02:00 committed by Jean Delvare
parent d89fa6867d
commit 084489e64c
1 changed files with 26 additions and 43 deletions
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69
drivers/hwmon/lm90.c
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@ -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);