ACPI: battery: Remove redundant NULL initalizations

A local 'battery' variable is initialized to NULL on two occassions
where it is unconditionally rewritten later. Remove the unnecessary
initializations.

Signed-off-by: Ilpo Järvinen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: ij-intel

drivers/acpi/battery.c

@@ -1207,7 +1207,7 @@ static int acpi_battery_update_retry(struct acpi_battery *battery)
 static int acpi_battery_add(struct acpi_device *device)
 {
 	int result = 0;
-	struct acpi_battery *battery = NULL;
+	struct acpi_battery *battery;
 
 	if (!device)
 		return -EINVAL;
@@ -1260,7 +1260,7 @@ static int acpi_battery_add(struct acpi_device *device)
 
 static void acpi_battery_remove(struct acpi_device *device)
 {
-	struct acpi_battery *battery = NULL;
+	struct acpi_battery *battery;
 
 	if (!device || !acpi_driver_data(device))
 		return;