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Commit c9bdf291 authored by Bastian Germann's avatar Bastian Germann Committed by Guenter Roeck
Browse files

hwmon: (asus_atk0110) Make use of device managed memory 



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

Signed-off-by: default avatarBastian Germann <bastiangermann@fishpost.de>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 3c60726d

drivers/hwmon/asus_atk0110.c

+8 −36
Original line number Diff line number Diff line
@@ -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;

}