diff options
| author | Alexey Starikovskiy <astarikovskiy@suse.de> | 2007-11-13 12:23:06 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-11-13 09:02:18 -0800 |
| commit | 9104476e4efbef8a8e32d48ced583603ff32a2db (patch) | |
| tree | 1be22813f6cab5aa5d08fd9131eba25d249842fd /drivers/acpi/battery.c | |
| parent | 0b832a4b93932103d73c0c3f35ef1153e288327b (diff) | |
ACPI: Battery: remove cycle from battery removal.
get_property() should not call battery_update(), it also should call
get_status() only if battery is present to avoid cycle and oops.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Acked-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/acpi/battery.c')
| -rw-r--r-- | drivers/acpi/battery.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index c2ce0ad2169..192c244f619 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -132,7 +132,7 @@ 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_state(struct acpi_battery *battery); static int acpi_battery_get_property(struct power_supply *psy, enum power_supply_property psp, @@ -140,10 +140,11 @@ static int acpi_battery_get_property(struct power_supply *psy, { struct acpi_battery *battery = to_acpi_battery(psy); - if ((!acpi_battery_present(battery)) && - psp != POWER_SUPPLY_PROP_PRESENT) + if (acpi_battery_present(battery)) { + /* run battery update only if it is present */ + acpi_battery_get_state(battery); + } else if (psp != POWER_SUPPLY_PROP_PRESENT) return -ENODEV; - acpi_battery_update(battery); switch (psp) { case POWER_SUPPLY_PROP_STATUS: if (battery->state & 0x01) @@ -457,6 +458,7 @@ static void sysfs_remove_battery(struct acpi_battery *battery) return; device_remove_file(battery->bat.dev, &alarm_attr); power_supply_unregister(&battery->bat); + battery->bat.dev = NULL; } static int acpi_battery_update(struct acpi_battery *battery) |