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Commit f49d6a7e authored by Kyle McMartin's avatar Kyle McMartin Committed by Guenter Roeck
Browse files

acpi_power_meter: remove duplicate code between register_{ro,rw}_attrs 



Key off the attr->set method being present to set the sysfs attribute
as writable.

Signed-off-by: default avatarKyle McMartin <kyle@redhat.com>
Signed-off-by: default avatarGuenter Roeck <guenter.roeck@ericsson.com>
parent 3c45f2c7

drivers/hwmon/acpi_power_meter.c

+17 −42
Original line number Diff line number Diff line
@@ -630,49 +630,24 @@ end: 
}



/* Registration and deregistration */

static int register_ro_attrs(struct acpi_power_meter_resource *resource,

			     struct sensor_template *ro)

static int register_attrs(struct acpi_power_meter_resource *resource,

			  struct sensor_template *attrs)

{

	struct device *dev = &resource->acpi_dev->dev;

	struct sensor_device_attribute *sensors =

		&resource->sensors[resource->num_sensors];

	int res = 0;



	while (ro->label) {

		sensors->dev_attr.attr.name = ro->label;

	while (attrs->label) {

		sensors->dev_attr.attr.name = attrs->label;

		sensors->dev_attr.attr.mode = S_IRUGO;

		sensors->dev_attr.show = ro->show;

		sensors->index = ro->index;

		sensors->dev_attr.show = attrs->show;

		sensors->index = attrs->index;



		sysfs_attr_init(&sensors->dev_attr.attr);

		res = device_create_file(dev, &sensors->dev_attr);

		if (res) {

			sensors->dev_attr.attr.name = NULL;

			goto error;

		if (attrs->set) {

			sensors->dev_attr.attr.mode |= S_IWUSR;

			sensors->dev_attr.store = attrs->set;

		}

		sensors++;

		resource->num_sensors++;

		ro++;

	}



error:

	return res;

}



static int register_rw_attrs(struct acpi_power_meter_resource *resource,

			     struct sensor_template *rw)

{

	struct device *dev = &resource->acpi_dev->dev;

	struct sensor_device_attribute *sensors =

		&resource->sensors[resource->num_sensors];

	int res = 0;



	while (rw->label) {

		sensors->dev_attr.attr.name = rw->label;

		sensors->dev_attr.attr.mode = S_IRUGO | S_IWUSR;

		sensors->dev_attr.show = rw->show;

		sensors->dev_attr.store = rw->set;

		sensors->index = rw->index;



		sysfs_attr_init(&sensors->dev_attr.attr);

		res = device_create_file(dev, &sensors->dev_attr);
@@ -682,7 +657,7 @@ static int register_rw_attrs(struct acpi_power_meter_resource *resource, 
		}

		sensors++;

		resource->num_sensors++;

		rw++;

		attrs++;

	}



error:
@@ -714,10 +689,10 @@ static int setup_attrs(struct acpi_power_meter_resource *resource) 
		return res;



	if (resource->caps.flags & POWER_METER_CAN_MEASURE) {

		res = register_ro_attrs(resource, meter_ro_attrs);

		res = register_attrs(resource, meter_ro_attrs);

		if (res)

			goto error;

		res = register_rw_attrs(resource, meter_rw_attrs);

		res = register_attrs(resource, meter_rw_attrs);

		if (res)

			goto error;

	}
@@ -730,27 +705,27 @@ static int setup_attrs(struct acpi_power_meter_resource *resource) 
		}



		if (resource->caps.configurable_cap) {

			res = register_rw_attrs(resource, rw_cap_attrs);

			res = register_attrs(resource, rw_cap_attrs);

			if (res)

				goto error;

		} else {

			res = register_ro_attrs(resource, ro_cap_attrs);

			res = register_attrs(resource, ro_cap_attrs);

			if (res)

				goto error;

		}

		res = register_ro_attrs(resource, misc_cap_attrs);

		res = register_attrs(resource, misc_cap_attrs);

		if (res)

			goto error;

	}

skip_unsafe_cap:



	if (resource->caps.flags & POWER_METER_CAN_TRIP) {

		res = register_rw_attrs(resource, trip_attrs);

		res = register_attrs(resource, trip_attrs);

		if (res)

			goto error;

	}



	res = register_ro_attrs(resource, misc_attrs);

	res = register_attrs(resource, misc_attrs);

	if (res)

		goto error;