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

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

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Kyle McMartin 2012-04-02 14:19:02 -04:00 committed by Guenter Roeck
parent 3c45f2c78d
commit f49d6a7ed2
1 changed files with 19 additions and 44 deletions
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63
drivers/hwmon/acpi_power_meter.c
View file

@ -630,19 +630,24 @@ static int read_domain_devices(struct acpi_power_meter_resource *resource)
}
/* 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;
if (attrs->set) {
sensors->dev_attr.attr.mode |= S_IWUSR;
sensors->dev_attr.store = attrs->set;
}
sysfs_attr_init(&sensors->dev_attr.attr);
res = device_create_file(dev, &sensors->dev_attr);
@ -652,37 +657,7 @@ static int register_ro_attrs(struct acpi_power_meter_resource *resource,
}
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);
if (res) {
sensors->dev_attr.attr.name = NULL;
goto error;
}
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;