Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI / Sleep: Allow the NVS saving to be skipped during suspend to RAM
  ACPI: create "processor.bm_check_disable" boot param
  ACPI: skip checking BM_STS if the BIOS doesn't ask for it
  ACPI: fix unused function warning
  ACPI: processor: fix processor_physically_present on UP
  ACPI video: fix string mismatch for Sony SR290 laptop
  ACPI battery: don't invoke power_supply_changed twice when battery is hot-added
  ACPI: handle systems which asynchoronously enable ACPI mode

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)
 static void acpi_battery_notify(struct acpi_device *device, u32 event)
 {
         struct acpi_battery *battery = acpi_driver_data(device);
+#ifdef CONFIG_ACPI_SYSFS_POWER
+        struct device *old;
+#endif
 
         if (!battery)
                 return;
+#ifdef CONFIG_ACPI_SYSFS_POWER
+        old = battery->bat.dev;
+#endif
         acpi_battery_update(battery);
         acpi_bus_generate_proc_event(device, event,
                                      acpi_battery_present(battery));
@@ -879,7 +885,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
                                         acpi_battery_present(battery));
 #ifdef CONFIG_ACPI_SYSFS_POWER
         /* acpi_battery_update could remove power_supply object */
-        if (battery->bat.dev)
+        if (old && battery->bat.dev)
                 power_supply_changed(&battery->bat);
 #endif
 }