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-rw-r--r--drivers/acpi/battery.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index fc9c50ab521..b5df318978e 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -937,10 +937,8 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
case ACPI_BATTERY_NOTIFY_INFO:
case ACPI_NOTIFY_BUS_CHECK:
case ACPI_NOTIFY_DEVICE_CHECK:
- acpi_battery_mutex_lock(battery);
device = battery->device;
acpi_battery_notify_update(battery);
- acpi_battery_mutex_unlock(battery);
acpi_bus_generate_event(device, event,
acpi_battery_present(battery));
break;