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path: root/drivers/acpi/battery.c
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Diffstat (limited to 'drivers/acpi/battery.c')
-rw-r--r--drivers/acpi/battery.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 3026e3fa83ef..dc58402b0a17 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -868,9 +868,15 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
868static void acpi_battery_notify(struct acpi_device *device, u32 event) 868static void acpi_battery_notify(struct acpi_device *device, u32 event)
869{ 869{
870 struct acpi_battery *battery = acpi_driver_data(device); 870 struct acpi_battery *battery = acpi_driver_data(device);
871#ifdef CONFIG_ACPI_SYSFS_POWER
872 struct device *old;
873#endif
871 874
872 if (!battery) 875 if (!battery)
873 return; 876 return;
877#ifdef CONFIG_ACPI_SYSFS_POWER
878 old = battery->bat.dev;
879#endif
874 acpi_battery_update(battery); 880 acpi_battery_update(battery);
875 acpi_bus_generate_proc_event(device, event, 881 acpi_bus_generate_proc_event(device, event,
876 acpi_battery_present(battery)); 882 acpi_battery_present(battery));
@@ -879,7 +885,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
879 acpi_battery_present(battery)); 885 acpi_battery_present(battery));
880#ifdef CONFIG_ACPI_SYSFS_POWER 886#ifdef CONFIG_ACPI_SYSFS_POWER
881 /* acpi_battery_update could remove power_supply object */ 887 /* acpi_battery_update could remove power_supply object */
882 if (battery->bat.dev) 888 if (old && battery->bat.dev)
883 power_supply_changed(&battery->bat); 889 power_supply_changed(&battery->bat);
884#endif 890#endif
885} 891}