hwmon: (pmbus/core) Declare regulator notification function as void

The regulator notification function never returns an error.
Declare it as void.

While at it, fix its indentation.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Author: groeck

drivers/hwmon/pmbus/pmbus_core.c

@@ -3312,27 +3312,25 @@ static int pmbus_regulator_register(struct pmbus_data *data)
 	return 0;
 }
 
-static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event)
+static void pmbus_regulator_notify(struct pmbus_data *data, int page, int event)
 {
-		int j;
+	int j;
 
-		for (j = 0; j < data->info->num_regulators; j++) {
-			if (page == rdev_get_id(data->rdevs[j])) {
-				regulator_notifier_call_chain(data->rdevs[j], event, NULL);
-				break;
-			}
+	for (j = 0; j < data->info->num_regulators; j++) {
+		if (page == rdev_get_id(data->rdevs[j])) {
+			regulator_notifier_call_chain(data->rdevs[j], event, NULL);
+			break;
 		}
-		return 0;
+	}
 }
 #else
 static int pmbus_regulator_register(struct pmbus_data *data)
 {
 	return 0;
 }
 
-static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event)
+static void pmbus_regulator_notify(struct pmbus_data *data, int page, int event)
 {
-		return 0;
 }
 #endif