Revert "thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()"

This reverts commit 7611fb6806 ("thermal: thermal_hwmon: Convert to
hwmon_device_register_with_info()").

Pavel Machek reported breakage in the Nokia N900 due to this commit.

We can revisit a proper fix for the warning later.

Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

drivers/thermal/thermal_hwmon.c

@@ -58,6 +58,14 @@ static LIST_HEAD(thermal_hwmon_list);
 
 static DEFINE_MUTEX(thermal_hwmon_list_lock);
 
+static ssize_t
+name_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct thermal_hwmon_device *hwmon = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", hwmon->type);
+}
+static DEVICE_ATTR_RO(name);
+
 static ssize_t
 temp_input_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -157,12 +165,15 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
 
 	INIT_LIST_HEAD(&hwmon->tz_list);
 	strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH);
-	hwmon->device = hwmon_device_register_with_info(NULL, hwmon->type,
-							hwmon, NULL, NULL);
+	hwmon->device = hwmon_device_register(NULL);
 	if (IS_ERR(hwmon->device)) {
 		result = PTR_ERR(hwmon->device);
 		goto free_mem;
 	}
+	dev_set_drvdata(hwmon->device, hwmon);
+	result = device_create_file(hwmon->device, &dev_attr_name);
+	if (result)
+		goto free_mem;
 
  register_sys_interface:
 	temp = kzalloc(sizeof(*temp), GFP_KERNEL);
@@ -211,8 +222,10 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
  free_temp_mem:
 	kfree(temp);
  unregister_name:
-	if (new_hwmon_device)
+	if (new_hwmon_device) {
+		device_remove_file(hwmon->device, &dev_attr_name);
 		hwmon_device_unregister(hwmon->device);
+	}
  free_mem:
 	if (new_hwmon_device)
 		kfree(hwmon);
@@ -254,6 +267,7 @@ void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
 	list_del(&hwmon->node);
 	mutex_unlock(&thermal_hwmon_list_lock);
 
+	device_remove_file(hwmon->device, &dev_attr_name);
 	hwmon_device_unregister(hwmon->device);
 	kfree(hwmon);
 }