diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2010-07-07 09:11:57 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-07-06 22:22:46 -0400 |
| commit | 153e500f516329f439856f52ccbf61d1fd1a946a (patch) | |
| tree | 0a3e59203970f03cd0fc1839135b9eb1a6298c4c /drivers/acpi/battery.c | |
| parent | 815c4163b6c8ebf8152f42b0a5fd015cfdcedc78 (diff) | |
| download | lwn-153e500f516329f439856f52ccbf61d1fd1a946a.tar.gz lwn-153e500f516329f439856f52ccbf61d1fd1a946a.zip | |
ACPI battery: don't invoke power_supply_changed twice when battery is hot-added
When battery is hot-added, we should not invoke power_supply_changed
in acpi_battery_notify, because it has been invoked in acpi_battery_update,
and battery->bat.changed_work is queued in keventd already.
https://bugzilla.kernel.org/show_bug.cgi?id=16244
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@sude.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/battery.c')
| -rw-r--r-- | drivers/acpi/battery.c | 8 |
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 } |