From: Zhang Rui <rui.zhang@xxxxxxxxx> Sometimes the Battery driver doesn't get notifications when it's plugged/unplugged. And this results in the incorrect Battery status reported by the power supply sysfs I/F. Update Battery status first when querying from sysfs. http://marc.info/?l=linux-acpi&m=128855015826728&w=2 Tested_by: Seblu <seblu@xxxxxxxxx> Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> --- drivers/acpi/battery.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 95649d3..9fb9d5a 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -130,6 +130,8 @@ struct acpi_battery { unsigned long flags; }; +static int acpi_battery_update(struct acpi_battery *battery); + #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); inline int acpi_battery_present(struct acpi_battery *battery) @@ -184,6 +186,9 @@ static int acpi_battery_get_property(struct power_supply *psy, int ret = 0; struct acpi_battery *battery = to_acpi_battery(psy); + if (acpi_battery_update(battery)) + return -ENODEV; + if (acpi_battery_present(battery)) { /* run battery update only if it is present */ acpi_battery_get_state(battery); -- 1.7.3.3.480.g2f76a -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
