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-rw-r--r--drivers/hwmon/asus_atk0110.c75
1 files changed, 25 insertions, 50 deletions
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 975c43d446f8..fcba2b82ec71 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -125,6 +125,8 @@ struct atk_data {
 	int temperature_count;
 	int fan_count;
 	struct list_head sensor_list;
+	struct attribute_group attr_group;
+	const struct attribute_group *attr_groups[2];
 
 	struct {
 		struct dentry *root;
@@ -262,14 +264,6 @@ static ssize_t atk_limit2_show(struct device *dev,
 	return sprintf(buf, "%lld\n", value);
 }
 
-static ssize_t atk_name_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "atk0110\n");
-}
-static struct device_attribute atk_name_attr =
-		__ATTR(name, 0444, atk_name_show, NULL);
-
 static void atk_init_attribute(struct device_attribute *attr, char *name,
 		sysfs_show_func show)
 {
@@ -1193,42 +1187,30 @@ static int atk_enumerate_new_hwmon(struct atk_data *data)
 	return err;
 }
 
-static int atk_create_files(struct atk_data *data)
+static int atk_init_attribute_groups(struct atk_data *data)
 {
+	struct device *dev = &data->acpi_dev->dev;
 	struct atk_sensor_data *s;
-	int err;
+	struct attribute **attrs;
+	int i = 0;
+	int len = (data->voltage_count + data->temperature_count
+			+ data->fan_count) * 4 + 1;
+
+	attrs = devm_kcalloc(dev, len, sizeof(struct attribute *), GFP_KERNEL);
+	if (!attrs)
+		return -ENOMEM;
 
 	list_for_each_entry(s, &data->sensor_list, list) {
-		err = device_create_file(data->hwmon_dev, &s->input_attr);
-		if (err)
-			return err;
-		err = device_create_file(data->hwmon_dev, &s->label_attr);
-		if (err)
-			return err;
-		err = device_create_file(data->hwmon_dev, &s->limit1_attr);
-		if (err)
-			return err;
-		err = device_create_file(data->hwmon_dev, &s->limit2_attr);
-		if (err)
-			return err;
+		attrs[i++] = &s->input_attr.attr;
+		attrs[i++] = &s->label_attr.attr;
+		attrs[i++] = &s->limit1_attr.attr;
+		attrs[i++] = &s->limit2_attr.attr;
 	}
 
-	err = device_create_file(data->hwmon_dev, &atk_name_attr);
+	data->attr_group.attrs = attrs;
+	data->attr_groups[0] = &data->attr_group;
 
-	return err;
-}
-
-static void atk_remove_files(struct atk_data *data)
-{
-	struct atk_sensor_data *s;
-
-	list_for_each_entry(s, &data->sensor_list, list) {
-		device_remove_file(data->hwmon_dev, &s->input_attr);
-		device_remove_file(data->hwmon_dev, &s->label_attr);
-		device_remove_file(data->hwmon_dev, &s->limit1_attr);
-		device_remove_file(data->hwmon_dev, &s->limit2_attr);
-	}
-	device_remove_file(data->hwmon_dev, &atk_name_attr);
+	return 0;
 }
 
 static void atk_free_sensors(struct atk_data *data)
@@ -1245,24 +1227,15 @@ static void atk_free_sensors(struct atk_data *data)
 static int atk_register_hwmon(struct atk_data *data)
 {
 	struct device *dev = &data->acpi_dev->dev;
-	int err;
 
 	dev_dbg(dev, "registering hwmon device\n");
-	data->hwmon_dev = hwmon_device_register(dev);
+	data->hwmon_dev = hwmon_device_register_with_groups(dev, "atk0110",
+							    data,
+							    data->attr_groups);
 	if (IS_ERR(data->hwmon_dev))
 		return PTR_ERR(data->hwmon_dev);
 
-	dev_dbg(dev, "populating sysfs directory\n");
-	err = atk_create_files(data);
-	if (err)
-		goto remove;
-
 	return 0;
-remove:
-	/* Cleanup the registered files */
-	atk_remove_files(data);
-	hwmon_device_unregister(data->hwmon_dev);
-	return err;
 }
 
 static int atk_probe_if(struct atk_data *data)
@@ -1397,6 +1370,9 @@ static int atk_add(struct acpi_device *device)
 		goto out;
 	}
 
+	err = atk_init_attribute_groups(data);
+	if (err)
+		goto out;
 	err = atk_register_hwmon(data);
 	if (err)
 		goto cleanup;
@@ -1423,7 +1399,6 @@ static int atk_remove(struct acpi_device *device)
 
 	atk_debugfs_cleanup(data);
 
-	atk_remove_files(data);
 	atk_free_sensors(data);
 	hwmon_device_unregister(data->hwmon_dev);