ACPI: battery: Adjust event notification routine

Adjust acpi_battery_notify() to cast its "data" argument to a struct
acpi_battery pointer istead of a struct acpi_device one, which allows
the use of acpi_driver_data() to be limited and will facilitate
subsequent changes.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/4344406.1IzOArtZ34@rafael.j.wysocki

Author: rafaeljw

drivers/acpi/battery.c

@@ -1054,8 +1054,8 @@ static void acpi_battery_refresh(struct acpi_battery *battery)
 /* Driver Interface */
 static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
 {
-	struct acpi_device *device = data;
-	struct acpi_battery *battery = acpi_driver_data(device);
+	struct acpi_battery *battery = data;
+	struct acpi_device *device = battery->device;
 	struct power_supply *old;
 
 	if (!battery)
@@ -1249,7 +1249,7 @@ static int acpi_battery_add(struct acpi_device *device)
 	device_init_wakeup(&device->dev, 1);
 
 	result = acpi_dev_install_notify_handler(device, ACPI_ALL_NOTIFY,
-						 acpi_battery_notify, device);
+						 acpi_battery_notify, battery);
 	if (result)
 		goto fail_pm;