ACPI: battery: Update battery information upon sysfs read.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index a291849f6c5..9da8cec80fd 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -130,6 +130,8 @@ 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_property(struct power_supply *psy,
                                      enum power_supply_property psp,
                                      union power_supply_propval *val)
@@ -139,6 +141,7 @@ static int acpi_battery_get_property(struct power_supply *psy,
         if ((!acpi_battery_present(battery)) &&
              psp != POWER_SUPPLY_PROP_PRESENT)
                 return -ENODEV;
+        acpi_battery_update(battery);
         switch (psp) {
         case POWER_SUPPLY_PROP_STATUS:
                 if (battery->state & 0x01)