Pull battery into release branch
[linux-2.6.git] / drivers / acpi / battery.c
index cbb27b4ddea4d48372e735f140c1c8906fc0bfe8..2e8e790c1180ee500d7a1a3ef7d929ff7ed3df65 100644 (file)
@@ -132,7 +132,7 @@ static int acpi_battery_technology(struct acpi_battery *battery)
        return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
 }
 
-static int acpi_battery_update(struct acpi_battery *battery);
+static int acpi_battery_get_state(struct acpi_battery *battery);
 
 static int acpi_battery_get_property(struct power_supply *psy,
                                     enum power_supply_property psp,
@@ -140,10 +140,11 @@ static int acpi_battery_get_property(struct power_supply *psy,
 {
        struct acpi_battery *battery = to_acpi_battery(psy);
 
-       if ((!acpi_battery_present(battery)) &&
-            psp != POWER_SUPPLY_PROP_PRESENT)
+       if (acpi_battery_present(battery)) {
+               /* run battery update only if it is present */
+               acpi_battery_get_state(battery);
+       } else if (psp != POWER_SUPPLY_PROP_PRESENT)
                return -ENODEV;
-       acpi_battery_update(battery);
        switch (psp) {
        case POWER_SUPPLY_PROP_STATUS:
                if (battery->state & 0x01)
@@ -459,6 +460,7 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
                return;
        device_remove_file(battery->bat.dev, &alarm_attr);
        power_supply_unregister(&battery->bat);
+       battery->bat.dev = NULL;
 }
 
 static int acpi_battery_update(struct acpi_battery *battery)