Newly inserted battery might differ from one just removed, so

update of battery info fields is required.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Andy Neitzke <neitzke@ias.edu>

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

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 1423b0c0cd2e..65132f920459 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -471,7 +471,7 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
 
 static int acpi_battery_update(struct acpi_battery *battery)
 {
-        int result;
+        int result, old_present = acpi_battery_present(battery);
         result = acpi_battery_get_status(battery);
         if (result)
                 return result;
@@ -482,7 +482,8 @@ static int acpi_battery_update(struct acpi_battery *battery)
                 return 0;
         }
 #endif
-        if (!battery->update_time) {
+        if (!battery->update_time ||
+            old_present != acpi_battery_present(battery)) {
                 result = acpi_battery_get_info(battery);
                 if (result)
                         return result;