process reading battery status hangs

http://bugzilla.kernel.org/show_bug.cgi?id=8351

Signed-off-by: Vladimir Lebedev <vladimir.p.lebedev@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index fc9c50ab5219..b5df318978ed 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;