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ACPI: battery: Call power_supply_changed() when adding hooks

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If a battery hook is added to a battery, userspace software
is not informed that the available properties of the battery
might have changed. This for example causes upower to react
slowly if a new battery hook is added during runtime.

Fix this by calling power_supply_changed() if a battery hook
was successfully added/removed.

Tested on a Dell Inspiron 3505.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Armin Wolf 2022-11-30 19:41:01 +01:00 committed by Rafael J. Wysocki
parent b7b275e60b
commit 98b0cf207b
1 changed files with 4 additions and 1 deletions
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5
drivers/acpi/battery.c
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@ -696,7 +696,8 @@ static void __battery_hook_unregister(struct acpi_battery_hook *hook, int lock)
if (lock)
mutex_lock(&hook_mutex);
list_for_each_entry(battery, &acpi_battery_list, list) {
hook->remove_battery(battery->bat);
if (!hook->remove_battery(battery->bat))
power_supply_changed(battery->bat);
}
list_del(&hook->list);
if (lock)
@ -735,6 +736,8 @@ void battery_hook_register(struct acpi_battery_hook *hook)
__battery_hook_unregister(hook, 0);
goto end;
}
power_supply_changed(battery->bat);
}
pr_info("new extension: %s\n", hook->name);
end: