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hwmon: (asus_atk0110) Make use of device managed memory

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Use devm_* variants of kstrdup and kzalloc. Get rid of kfree cleanups.

Signed-off-by: Bastian Germann <bastiangermann@fishpost.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Bastian Germann 2018-06-01 17:14:19 +02:00 committed by Guenter Roeck
parent 3c60726d21
commit c9bdf29154
1 changed files with 8 additions and 36 deletions
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44
drivers/hwmon/asus_atk0110.c
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@ -190,7 +190,6 @@ static int atk_add(struct acpi_device *device);
static int atk_remove(struct acpi_device *device);
static void atk_print_sensor(struct atk_data *data, union acpi_object *obj);
static int atk_read_value(struct atk_sensor_data *sensor, u64 *value);
static void atk_free_sensors(struct atk_data *data);
static struct acpi_driver atk_driver = {
.name = ATK_HID,
@ -906,15 +905,13 @@ static int atk_add_sensor(struct atk_data *data, union acpi_object *obj)
limit1 = atk_get_pack_member(data, obj, HWMON_PACK_LIMIT1);
limit2 = atk_get_pack_member(data, obj, HWMON_PACK_LIMIT2);
sensor = kzalloc(sizeof(*sensor), GFP_KERNEL);
sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
if (!sensor)
return -ENOMEM;
sensor->acpi_name = kstrdup(name->string.pointer, GFP_KERNEL);
if (!sensor->acpi_name) {
err = -ENOMEM;
goto out;
}
sensor->acpi_name = devm_kstrdup(dev, name->string.pointer, GFP_KERNEL);
if (!sensor->acpi_name)
return -ENOMEM;
INIT_LIST_HEAD(&sensor->list);
sensor->type = type;
@ -955,9 +952,6 @@ static int atk_add_sensor(struct atk_data *data, union acpi_object *obj)
(*num)++;
return 1;
out:
kfree(sensor);
return err;
}
static int atk_enumerate_old_hwmon(struct atk_data *data)
@ -998,8 +992,7 @@ static int atk_enumerate_old_hwmon(struct atk_data *data)
dev_warn(dev, METHOD_OLD_ENUM_TMP ": ACPI exception: %s\n",
acpi_format_exception(status));
ret = -ENODEV;
goto cleanup;
return -ENODEV;
}
pack = buf.pointer;
@ -1020,8 +1013,7 @@ static int atk_enumerate_old_hwmon(struct atk_data *data)
dev_warn(dev, METHOD_OLD_ENUM_FAN ": ACPI exception: %s\n",
acpi_format_exception(status));
ret = -ENODEV;
goto cleanup;
return -ENODEV;
}
pack = buf.pointer;
@ -1035,9 +1027,6 @@ static int atk_enumerate_old_hwmon(struct atk_data *data)
ACPI_FREE(buf.pointer);
return count;
cleanup:
atk_free_sensors(data);
return ret;
}
static int atk_ec_present(struct atk_data *data)
@ -1213,17 +1202,6 @@ static int atk_init_attribute_groups(struct atk_data *data)
return 0;
}
static void atk_free_sensors(struct atk_data *data)
{
struct list_head *head = &data->sensor_list;
struct atk_sensor_data *s, *tmp;
list_for_each_entry_safe(s, tmp, head, list) {
kfree(s->acpi_name);
kfree(s);
}
}
static int atk_register_hwmon(struct atk_data *data)
{
struct device *dev = &data->acpi_dev->dev;
@ -1323,7 +1301,7 @@ static int atk_add(struct acpi_device *device)
dev_dbg(&device->dev, "adding...\n");
data = kzalloc(sizeof(*data), GFP_KERNEL);
data = devm_kzalloc(&device->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
@ -1375,18 +1353,15 @@ static int atk_add(struct acpi_device *device)
goto out;
err = atk_register_hwmon(data);
if (err)
goto cleanup;
goto out;
atk_debugfs_init(data);
device->driver_data = data;
return 0;
cleanup:
atk_free_sensors(data);
out:
if (data->disable_ec)
atk_ec_ctl(data, 0);
kfree(data);
return err;
}
@ -1399,7 +1374,6 @@ static int atk_remove(struct acpi_device *device)
atk_debugfs_cleanup(data);
atk_free_sensors(data);
hwmon_device_unregister(data->hwmon_dev);
if (data->disable_ec) {
@ -1407,8 +1381,6 @@ static int atk_remove(struct acpi_device *device)
dev_err(&device->dev, "Failed to disable EC\n");
}
kfree(data);
return 0;
}