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ACPI: make remove callback of ACPI driver void

Browse Source 
For bus-based driver, device removal is implemented as:
1 device_remove()->
2   bus->remove()->
3     driver->remove()

Driver core needs no inform from callee(bus driver) about the
result of remove callback. In that case, commit fc7a6209d5
("bus: Make remove callback return void") forces bus_type::remove
be void-returned.

Now we have the situation that both 1 & 2 of calling chain are
void-returned, so it does not make much sense for 3(driver->remove)
to return non-void to its caller.

So the basic idea behind this change is making remove() callback of
any bus-based driver to be void-returned.

This change, for itself, is for device drivers based on acpi-bus.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>  # for drivers/platform/surface/*
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dawei Li 2022-11-14 00:26:09 +08:00 committed by Rafael J. Wysocki
parent d7d4332155
commit 6c0eb5ba35
48 changed files with 88 additions and 149 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/ia64/hp/common/aml_nfw.c
View File

@ -187,9 +187,9 @@ static int aml_nfw_add(struct acpi_device *device)
return aml_nfw_add_global_handler();
}
static int aml_nfw_remove(struct acpi_device *device)
static void aml_nfw_remove(struct acpi_device *device)
{
return aml_nfw_remove_global_handler();
aml_nfw_remove_global_handler();
}
static const struct acpi_device_id aml_nfw_ids[] = {

3
arch/x86/platform/olpc/olpc-xo15-sci.c
View File

@ -183,13 +183,12 @@ err_sysfs:
return r;
}
static int xo15_sci_remove(struct acpi_device *device)
static void xo15_sci_remove(struct acpi_device *device)
{
acpi_disable_gpe(NULL, xo15_sci_gpe);
acpi_remove_gpe_handler(NULL, xo15_sci_gpe, xo15_sci_gpe_handler);
cancel_work_sync(&sci_work);
sysfs_remove_file(&device->dev.kobj, &lid_wake_on_close_attr.attr);
return 0;
}
#ifdef CONFIG_PM_SLEEP

8
drivers/acpi/ac.c
View File

@ -33,7 +33,7 @@ MODULE_DESCRIPTION("ACPI AC Adapter Driver");
MODULE_LICENSE("GPL");
static int acpi_ac_add(struct acpi_device *device);
static int acpi_ac_remove(struct acpi_device *device);
static void acpi_ac_remove(struct acpi_device *device);
static void acpi_ac_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id ac_device_ids[] = {
@ -288,12 +288,12 @@ static int acpi_ac_resume(struct device *dev)
#define acpi_ac_resume NULL
#endif
static int acpi_ac_remove(struct acpi_device *device)
static void acpi_ac_remove(struct acpi_device *device)
{
struct acpi_ac *ac = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
return;
ac = acpi_driver_data(device);
@ -301,8 +301,6 @@ static int acpi_ac_remove(struct acpi_device *device)
unregister_acpi_notifier(&ac->battery_nb);
kfree(ac);
return 0;
}
static int __init acpi_ac_init(void)

3
drivers/acpi/acpi_pad.c
View File

@ -449,7 +449,7 @@ static int acpi_pad_add(struct acpi_device *device)
return 0;
}
static int acpi_pad_remove(struct acpi_device *device)
static void acpi_pad_remove(struct acpi_device *device)
{
mutex_lock(&isolated_cpus_lock);
acpi_pad_idle_cpus(0);
@ -458,7 +458,6 @@ static int acpi_pad_remove(struct acpi_device *device)
acpi_remove_notify_handler(device->handle,
ACPI_DEVICE_NOTIFY, acpi_pad_notify);
acpi_pad_remove_sysfs(device);
return 0;
}
static const struct acpi_device_id pad_device_ids[] = {

8
drivers/acpi/acpi_video.c
View File

@ -86,7 +86,7 @@ static DEFINE_MUTEX(register_count_mutex);
static DEFINE_MUTEX(video_list_lock);
static LIST_HEAD(video_bus_head);
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device);
static void acpi_video_bus_remove(struct acpi_device *device);
static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
static void acpi_video_bus_register_backlight_work(struct work_struct *ignored);
static DECLARE_DELAYED_WORK(video_bus_register_backlight_work,
@ -2067,13 +2067,13 @@ err_free_video:
return error;
}
static int acpi_video_bus_remove(struct acpi_device *device)
static void acpi_video_bus_remove(struct acpi_device *device)
{
struct acpi_video_bus *video = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
return;
video = acpi_driver_data(device);
@ -2087,8 +2087,6 @@ static int acpi_video_bus_remove(struct acpi_device *device)
kfree(video->attached_array);
kfree(video);
return 0;
}
static void acpi_video_bus_register_backlight_work(struct work_struct *ignored)

5
drivers/acpi/battery.c
View File

@ -1208,12 +1208,12 @@ fail:
return result;
}
static int acpi_battery_remove(struct acpi_device *device)
static void acpi_battery_remove(struct acpi_device *device)
{
struct acpi_battery *battery = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
return;
device_init_wakeup(&device->dev, 0);
battery = acpi_driver_data(device);
unregister_pm_notifier(&battery->pm_nb);
@ -1221,7 +1221,6 @@ static int acpi_battery_remove(struct acpi_device *device)
mutex_destroy(&battery->lock);
mutex_destroy(&battery->sysfs_lock);
kfree(battery);
return 0;
}
#ifdef CONFIG_PM_SLEEP

5
drivers/acpi/button.c
View File

@ -125,7 +125,7 @@ static const struct dmi_system_id dmi_lid_quirks[] = {
};
static int acpi_button_add(struct acpi_device *device);
static int acpi_button_remove(struct acpi_device *device);
static void acpi_button_remove(struct acpi_device *device);
static void acpi_button_notify(struct acpi_device *device, u32 event);
#ifdef CONFIG_PM_SLEEP
@ -580,14 +580,13 @@ static int acpi_button_add(struct acpi_device *device)
return error;
}
static int acpi_button_remove(struct acpi_device *device)
static void acpi_button_remove(struct acpi_device *device)
{
struct acpi_button *button = acpi_driver_data(device);
acpi_button_remove_fs(device);
input_unregister_device(button->input);
kfree(button);
return 0;
}
static int param_set_lid_init_state(const char *val,

5
drivers/acpi/ec.c
View File

@ -1663,12 +1663,12 @@ err:
return ret;
}
static int acpi_ec_remove(struct acpi_device *device)
static void acpi_ec_remove(struct acpi_device *device)
{
struct acpi_ec *ec;
if (!device)
return -EINVAL;
return;
ec = acpi_driver_data(device);
release_region(ec->data_addr, 1);
@ -1678,7 +1678,6 @@ static int acpi_ec_remove(struct acpi_device *device)
ec_remove_handlers(ec);
acpi_ec_free(ec);
}
return 0;
}
static acpi_status

3
drivers/acpi/hed.c
View File

@ -56,10 +56,9 @@ static int acpi_hed_add(struct acpi_device *device)
return 0;
}
static int acpi_hed_remove(struct acpi_device *device)
static void acpi_hed_remove(struct acpi_device *device)
{
hed_handle = NULL;
return 0;
}
static struct acpi_driver acpi_hed_driver = {

3
drivers/acpi/nfit/core.c
View File

@ -3371,10 +3371,9 @@ static int acpi_nfit_add(struct acpi_device *adev)
return devm_add_action_or_reset(dev, acpi_nfit_shutdown, acpi_desc);
}
static int acpi_nfit_remove(struct acpi_device *adev)
static void acpi_nfit_remove(struct acpi_device *adev)
{
/* see acpi_nfit_unregister */
return 0;
}
static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)

9
drivers/acpi/sbs.c
View File

@ -96,7 +96,7 @@ struct acpi_sbs {
#define to_acpi_sbs(x) power_supply_get_drvdata(x)
static int acpi_sbs_remove(struct acpi_device *device);
static void acpi_sbs_remove(struct acpi_device *device);
static int acpi_battery_get_state(struct acpi_battery *battery);
static inline int battery_scale(int log)
@ -664,16 +664,16 @@ end:
return result;
}
static int acpi_sbs_remove(struct acpi_device *device)
static void acpi_sbs_remove(struct acpi_device *device)
{
struct acpi_sbs *sbs;
int id;
if (!device)
return -EINVAL;
return;
sbs = acpi_driver_data(device);
if (!sbs)
return -EINVAL;
return;
mutex_lock(&sbs->lock);
acpi_smbus_unregister_callback(sbs->hc);
for (id = 0; id < MAX_SBS_BAT; ++id)
@ -682,7 +682,6 @@ static int acpi_sbs_remove(struct acpi_device *device)
mutex_unlock(&sbs->lock);
mutex_destroy(&sbs->lock);
kfree(sbs);
return 0;
}
#ifdef CONFIG_PM_SLEEP

7
drivers/acpi/sbshc.c
View File

@ -30,7 +30,7 @@ struct acpi_smb_hc {
};
static int acpi_smbus_hc_add(struct acpi_device *device);
static int acpi_smbus_hc_remove(struct acpi_device *device);
static void acpi_smbus_hc_remove(struct acpi_device *device);
static const struct acpi_device_id sbs_device_ids[] = {
{"ACPI0001", 0},
@ -280,19 +280,18 @@ static int acpi_smbus_hc_add(struct acpi_device *device)
extern void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
static int acpi_smbus_hc_remove(struct acpi_device *device)
static void acpi_smbus_hc_remove(struct acpi_device *device)
{
struct acpi_smb_hc *hc;
if (!device)
return -EINVAL;
return;
hc = acpi_driver_data(device);
acpi_ec_remove_query_handler(hc->ec, hc->query_bit);
acpi_os_wait_events_complete();
kfree(hc);
device->driver_data = NULL;
return 0;
}
module_acpi_driver(acpi_smb_hc_driver);

7
drivers/acpi/thermal.c
View File

@ -74,7 +74,7 @@ MODULE_PARM_DESC(psv, "Disable or override all passive trip points.");
static struct workqueue_struct *acpi_thermal_pm_queue;
static int acpi_thermal_add(struct acpi_device *device);
static int acpi_thermal_remove(struct acpi_device *device);
static void acpi_thermal_remove(struct acpi_device *device);
static void acpi_thermal_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id thermal_device_ids[] = {
@ -1059,19 +1059,18 @@ end:
return result;
}
static int acpi_thermal_remove(struct acpi_device *device)
static void acpi_thermal_remove(struct acpi_device *device)
{
struct acpi_thermal *tz;
if (!device || !acpi_driver_data(device))
return -EINVAL;
return;
flush_workqueue(acpi_thermal_pm_queue);
tz = acpi_driver_data(device);
acpi_thermal_unregister_thermal_zone(tz);
kfree(tz);
return 0;
}
#ifdef CONFIG_PM_SLEEP

10
drivers/acpi/tiny-power-button.c
View File

@ -19,11 +19,15 @@ static const struct acpi_device_id tiny_power_button_device_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, tiny_power_button_device_ids);
static int acpi_noop_add_remove(struct acpi_device *device)
static int acpi_noop_add(struct acpi_device *device)
{
return 0;
}
static void acpi_noop_remove(struct acpi_device *device)
{
}
static void acpi_tiny_power_button_notify(struct acpi_device *device, u32 event)
{
kill_cad_pid(power_signal, 1);
@ -34,8 +38,8 @@ static struct acpi_driver acpi_tiny_power_button_driver = {
.class = "tiny-power-button",
.ids = tiny_power_button_device_ids,
.ops = {
.add = acpi_noop_add_remove,
.remove = acpi_noop_add_remove,
.add = acpi_noop_add,
.remove = acpi_noop_remove,
.notify = acpi_tiny_power_button_notify,
},
};

3
drivers/char/sonypi.c
View File

@ -1123,10 +1123,9 @@ static int sonypi_acpi_add(struct acpi_device *device)
return 0;
}
static int sonypi_acpi_remove(struct acpi_device *device)
static void sonypi_acpi_remove(struct acpi_device *device)
{
sonypi_acpi_device = NULL;
return 0;
}
static const struct acpi_device_id sonypi_device_ids[] = {

4
drivers/char/tpm/tpm_crb.c
View File

@ -713,14 +713,12 @@ static int crb_acpi_add(struct acpi_device *device)
return tpm_chip_register(chip);
}
static int crb_acpi_remove(struct acpi_device *device)
static void crb_acpi_remove(struct acpi_device *device)
{
struct device *dev = &device->dev;
struct tpm_chip *chip = dev_get_drvdata(dev);
tpm_chip_unregister(chip);
return 0;
}
static const struct dev_pm_ops crb_pm = {

4
drivers/hv/vmbus_drv.c
View File

@ -2239,7 +2239,7 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
return AE_OK;
}
static int vmbus_acpi_remove(struct acpi_device *device)
static void vmbus_acpi_remove(struct acpi_device *device)
{
struct resource *cur_res;
struct resource *next_res;
@ -2256,8 +2256,6 @@ static int vmbus_acpi_remove(struct acpi_device *device)
kfree(cur_res);
}
}
return 0;
}
static void vmbus_reserve_fb(void)

5
drivers/hwmon/acpi_power_meter.c
View File

@ -910,12 +910,12 @@ exit:
return res;
}
static int acpi_power_meter_remove(struct acpi_device *device)
static void acpi_power_meter_remove(struct acpi_device *device)
{
struct acpi_power_meter_resource *resource;
if (!device || !acpi_driver_data(device))
return -EINVAL;
return;
resource = acpi_driver_data(device);
hwmon_device_unregister(resource->hwmon_dev);
@ -924,7 +924,6 @@ static int acpi_power_meter_remove(struct acpi_device *device)
free_capabilities(resource);
kfree(resource);
return 0;
}
static int acpi_power_meter_resume(struct device *dev)

6
drivers/hwmon/asus_atk0110.c
View File

@ -187,7 +187,7 @@ struct atk_acpi_input_buf {
};
static int atk_add(struct acpi_device *device);
static int atk_remove(struct acpi_device *device);
static void atk_remove(struct acpi_device *device);
static void atk_print_sensor(struct atk_data *data, union acpi_object *obj);
static int atk_read_value(struct atk_sensor_data *sensor, u64 *value);
@ -1344,7 +1344,7 @@ out:
return err;
}
static int atk_remove(struct acpi_device *device)
static void atk_remove(struct acpi_device *device)
{
struct atk_data *data = device->driver_data;
dev_dbg(&device->dev, "removing...\n");
@ -1359,8 +1359,6 @@ static int atk_remove(struct acpi_device *device)
if (atk_ec_ctl(data, 0))
dev_err(&device->dev, "Failed to disable EC\n");
}
return 0;
}
static int __init atk0110_init(void)

4
drivers/input/misc/atlas_btns.c
View File

@ -106,7 +106,7 @@ static int atlas_acpi_button_add(struct acpi_device *device)
return err;
}
static int atlas_acpi_button_remove(struct acpi_device *device)
static void atlas_acpi_button_remove(struct acpi_device *device)
{
acpi_status status;
@ -116,8 +116,6 @@ static int atlas_acpi_button_remove(struct acpi_device *device)
pr_err("error removing addr spc handler\n");
input_unregister_device(input_dev);
return 0;
}
static const struct acpi_device_id atlas_device_ids[] = {

4
drivers/net/fjes/fjes_main.c
View File

@ -145,14 +145,12 @@ static int fjes_acpi_add(struct acpi_device *device)
return 0;
}
static int fjes_acpi_remove(struct acpi_device *device)
static void fjes_acpi_remove(struct acpi_device *device)
{
struct platform_device *plat_dev;
plat_dev = (struct platform_device *)acpi_driver_data(device);
platform_device_unregister(plat_dev);
return 0;
}
static struct acpi_driver fjes_acpi_driver = {

3
drivers/platform/chrome/chromeos_privacy_screen.c
View File

@ -123,12 +123,11 @@ static int chromeos_privacy_screen_add(struct acpi_device *adev)
return 0;
}
static int chromeos_privacy_screen_remove(struct acpi_device *adev)
static void chromeos_privacy_screen_remove(struct acpi_device *adev)
{
struct drm_privacy_screen *drm_privacy_screen = acpi_driver_data(adev);
drm_privacy_screen_unregister(drm_privacy_screen);
return 0;
}
static const struct acpi_device_id chromeos_privacy_screen_device_ids[] = {

4
drivers/platform/chrome/wilco_ec/event.c
View File

@ -500,15 +500,13 @@ free_minor:
return error;
}
static int event_device_remove(struct acpi_device *adev)
static void event_device_remove(struct acpi_device *adev)
{
struct event_device_data *dev_data = adev->driver_data;
cdev_device_del(&dev_data->cdev, &dev_data->dev);
ida_simple_remove(&event_ida, MINOR(dev_data->dev.devt));
hangup_device(dev_data);
return 0;
}
static const struct acpi_device_id event_acpi_ids[] = {

3
drivers/platform/surface/surfacepro3_button.c
View File

@ -239,13 +239,12 @@ static int surface_button_add(struct acpi_device *device)
return error;
}
static int surface_button_remove(struct acpi_device *device)
static void surface_button_remove(struct acpi_device *device)
{
struct surface_button *button = acpi_driver_data(device);
input_unregister_device(button->input);
kfree(button);
return 0;
}
static SIMPLE_DEV_PM_OPS(surface_button_pm,

3
drivers/platform/x86/asus-laptop.c
View File

@ -1901,7 +1901,7 @@ fail_platform:
return result;
}
static int asus_acpi_remove(struct acpi_device *device)
static void asus_acpi_remove(struct acpi_device *device)
{
struct asus_laptop *asus = acpi_driver_data(device);
@ -1914,7 +1914,6 @@ static int asus_acpi_remove(struct acpi_device *device)
kfree(asus->name);
kfree(asus);
return 0;
}
static const struct acpi_device_id asus_device_ids[] = {

3
drivers/platform/x86/asus-wireless.c
View File

@ -175,7 +175,7 @@ static int asus_wireless_add(struct acpi_device *adev)
return err;
}
static int asus_wireless_remove(struct acpi_device *adev)
static void asus_wireless_remove(struct acpi_device *adev)
{
struct asus_wireless_data *data = acpi_driver_data(adev);
@ -183,7 +183,6 @@ static int asus_wireless_remove(struct acpi_device *adev)
devm_led_classdev_unregister(&adev->dev, &data->led);
destroy_workqueue(data->wq);
}
return 0;
}
static struct acpi_driver asus_wireless_driver = {

20
drivers/platform/x86/classmate-laptop.c
View File

@ -418,11 +418,11 @@ failed_sensitivity:
return error;
}
static int cmpc_accel_remove_v4(struct acpi_device *acpi)
static void cmpc_accel_remove_v4(struct acpi_device *acpi)
{
device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
device_remove_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
return cmpc_remove_acpi_notify_device(acpi);
cmpc_remove_acpi_notify_device(acpi);
}
static SIMPLE_DEV_PM_OPS(cmpc_accel_pm, cmpc_accel_suspend_v4,
@ -648,10 +648,10 @@ failed_file:
return error;
}
static int cmpc_accel_remove(struct acpi_device *acpi)
static void cmpc_accel_remove(struct acpi_device *acpi)
{
device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr);
return cmpc_remove_acpi_notify_device(acpi);
cmpc_remove_acpi_notify_device(acpi);
}
static const struct acpi_device_id cmpc_accel_device_ids[] = {
@ -727,9 +727,9 @@ static int cmpc_tablet_add(struct acpi_device *acpi)
cmpc_tablet_idev_init);
}
static int cmpc_tablet_remove(struct acpi_device *acpi)
static void cmpc_tablet_remove(struct acpi_device *acpi)
{
return cmpc_remove_acpi_notify_device(acpi);
cmpc_remove_acpi_notify_device(acpi);
}
#ifdef CONFIG_PM_SLEEP
@ -974,7 +974,7 @@ out_bd:
return retval;
}
static int cmpc_ipml_remove(struct acpi_device *acpi)
static void cmpc_ipml_remove(struct acpi_device *acpi)
{
struct ipml200_dev *ipml;
@ -988,8 +988,6 @@ static int cmpc_ipml_remove(struct acpi_device *acpi)
}
kfree(ipml);
return 0;
}
static const struct acpi_device_id cmpc_ipml_device_ids[] = {
@ -1055,9 +1053,9 @@ static int cmpc_keys_add(struct acpi_device *acpi)
cmpc_keys_idev_init);
}
static int cmpc_keys_remove(struct acpi_device *acpi)
static void cmpc_keys_remove(struct acpi_device *acpi)
{
return cmpc_remove_acpi_notify_device(acpi);
cmpc_remove_acpi_notify_device(acpi);
}
static const struct acpi_device_id cmpc_keys_device_ids[] = {

6
drivers/platform/x86/dell/dell-rbtn.c
View File

@ -206,7 +206,7 @@ static void rbtn_input_event(struct rbtn_data *rbtn_data)
*/
static int rbtn_add(struct acpi_device *device);
static int rbtn_remove(struct acpi_device *device);
static void rbtn_remove(struct acpi_device *device);
static void rbtn_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id rbtn_ids[] = {
@ -426,7 +426,7 @@ static int rbtn_add(struct acpi_device *device)
}
static int rbtn_remove(struct acpi_device *device)
static void rbtn_remove(struct acpi_device *device)
{
struct rbtn_data *rbtn_data = device->driver_data;
@ -443,8 +443,6 @@ static int rbtn_remove(struct acpi_device *device)
rbtn_acquire(device, false);
device->driver_data = NULL;
return 0;
}
static void rbtn_notify(struct acpi_device *device, u32 event)

3
drivers/platform/x86/eeepc-laptop.c
View File

@ -1440,7 +1440,7 @@ fail_platform:
return result;
}
static int eeepc_acpi_remove(struct acpi_device *device)
static void eeepc_acpi_remove(struct acpi_device *device)
{
struct eeepc_laptop *eeepc = acpi_driver_data(device);
@ -1451,7 +1451,6 @@ static int eeepc_acpi_remove(struct acpi_device *device)
eeepc_platform_exit(eeepc);
kfree(eeepc);
return 0;
}

4
drivers/platform/x86/fujitsu-laptop.c
View File

@ -847,15 +847,13 @@ err_free_fifo:
return ret;
}
static int acpi_fujitsu_laptop_remove(struct acpi_device *device)
static void acpi_fujitsu_laptop_remove(struct acpi_device *device)
{
struct fujitsu_laptop *priv = acpi_driver_data(device);
fujitsu_laptop_platform_remove(device);
kfifo_free(&priv->fifo);
return 0;
}
static void acpi_fujitsu_laptop_press(struct acpi_device *device, int scancode)

3
drivers/platform/x86/fujitsu-tablet.c
View File

@ -484,12 +484,11 @@ static int acpi_fujitsu_add(struct acpi_device *adev)
return 0;
}
static int acpi_fujitsu_remove(struct acpi_device *adev)
static void acpi_fujitsu_remove(struct acpi_device *adev)
{
free_irq(fujitsu.irq, fujitsu_interrupt);
release_region(fujitsu.io_base, fujitsu.io_length);
input_fujitsu_remove();
return 0;
}
#ifdef CONFIG_PM_SLEEP

4
drivers/platform/x86/intel/rst.c
View File

@ -113,12 +113,10 @@ static int irst_add(struct acpi_device *acpi)
return error;
}
static int irst_remove(struct acpi_device *acpi)
static void irst_remove(struct acpi_device *acpi)
{
device_remove_file(&acpi->dev, &irst_wakeup_attr);
device_remove_file(&acpi->dev, &irst_timeout_attr);
return 0;
}
static const struct acpi_device_id irst_ids[] = {

4
drivers/platform/x86/lg-laptop.c
View File

@ -761,7 +761,7 @@ out_platform_registered:
return ret;
}
static int acpi_remove(struct acpi_device *device)
static void acpi_remove(struct acpi_device *device)
{
sysfs_remove_group(&pf_device->dev.kobj, &dev_attribute_group);
@ -773,8 +773,6 @@ static int acpi_remove(struct acpi_device *device)
platform_device_unregister(pf_device);
pf_device = NULL;
platform_driver_unregister(&pf_driver);
return 0;
}
static const struct acpi_device_id device_ids[] = {

8
drivers/platform/x86/panasonic-laptop.c
View File

@ -183,7 +183,7 @@ enum SINF_BITS { SINF_NUM_BATTERIES = 0,
/* R1 handles SINF_AC_CUR_BRIGHT as SINF_CUR_BRIGHT, doesn't know AC state */
static int acpi_pcc_hotkey_add(struct acpi_device *device);
static int acpi_pcc_hotkey_remove(struct acpi_device *device);
static void acpi_pcc_hotkey_remove(struct acpi_device *device);
static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id pcc_device_ids[] = {
@ -1065,12 +1065,12 @@ out_hotkey:
return result;
}
static int acpi_pcc_hotkey_remove(struct acpi_device *device)
static void acpi_pcc_hotkey_remove(struct acpi_device *device)
{
struct pcc_acpi *pcc = acpi_driver_data(device);
if (!device || !pcc)
return -EINVAL;
return;
i8042_remove_filter(panasonic_i8042_filter);
@ -1088,8 +1088,6 @@ static int acpi_pcc_hotkey_remove(struct acpi_device *device)
kfree(pcc->sinf);
kfree(pcc);
return 0;
}
module_acpi_driver(acpi_pcc_driver);

9
drivers/platform/x86/sony-laptop.c
View File

@ -3263,7 +3263,7 @@ outwalk:
return result;
}
static int sony_nc_remove(struct acpi_device *device)
static void sony_nc_remove(struct acpi_device *device)
{
struct sony_nc_value *item;
@ -3280,8 +3280,6 @@ static int sony_nc_remove(struct acpi_device *device)
sony_pf_remove();
sony_laptop_remove_input();
dprintk(SONY_NC_DRIVER_NAME " removed.\n");
return 0;
}
static const struct acpi_device_id sony_device_ids[] = {
@ -4630,14 +4628,14 @@ found:
* ACPI driver
*
*****************/
static int sony_pic_remove(struct acpi_device *device)
static void sony_pic_remove(struct acpi_device *device)
{
struct sony_pic_ioport *io, *tmp_io;
struct sony_pic_irq *irq, *tmp_irq;
if (sony_pic_disable(device)) {
pr_err("Couldn't disable device\n");
return -ENXIO;
return;
}
free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
@ -4667,7 +4665,6 @@ static int sony_pic_remove(struct acpi_device *device)
spic_dev.cur_irq = NULL;
dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
return 0;
}
static int sony_pic_add(struct acpi_device *device)

4
drivers/platform/x86/system76_acpi.c
View File

@ -744,7 +744,7 @@ error:
}
// Remove a System76 ACPI device
static int system76_remove(struct acpi_device *acpi_dev)
static void system76_remove(struct acpi_device *acpi_dev)
{
struct system76_data *data;
@ -760,8 +760,6 @@ static int system76_remove(struct acpi_device *acpi_dev)
devm_led_classdev_unregister(&acpi_dev->dev, &data->kb_led);
system76_get(data, "FINI");
return 0;
}
static struct acpi_driver system76_driver = {

3
drivers/platform/x86/topstar-laptop.c
View File

@ -332,7 +332,7 @@ err_free:
return err;
}
static int topstar_acpi_remove(struct acpi_device *device)
static void topstar_acpi_remove(struct acpi_device *device)
{
struct topstar_laptop *topstar = acpi_driver_data(device);
@ -344,7 +344,6 @@ static int topstar_acpi_remove(struct acpi_device *device)
topstar_acpi_exit(topstar);
kfree(topstar);
return 0;
}
static const struct acpi_device_id topstar_device_ids[] = {

4
drivers/platform/x86/toshiba_acpi.c
View File

@ -3186,7 +3186,7 @@ static void print_supported_features(struct toshiba_acpi_dev *dev)
pr_cont("\n");
}
static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
@ -3234,8 +3234,6 @@ static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
toshiba_acpi = NULL;
kfree(dev);
return 0;
}
static const char *find_hci_method(acpi_handle handle)

6
drivers/platform/x86/toshiba_bluetooth.c
View File

@ -36,7 +36,7 @@ struct toshiba_bluetooth_dev {
};
static int toshiba_bt_rfkill_add(struct acpi_device *device);
static int toshiba_bt_rfkill_remove(struct acpi_device *device);
static void toshiba_bt_rfkill_remove(struct acpi_device *device);
static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id bt_device_ids[] = {
@ -279,7 +279,7 @@ static int toshiba_bt_rfkill_add(struct acpi_device *device)
return result;
}
static int toshiba_bt_rfkill_remove(struct acpi_device *device)
static void toshiba_bt_rfkill_remove(struct acpi_device *device)
{
struct toshiba_bluetooth_dev *bt_dev = acpi_driver_data(device);
@ -291,7 +291,7 @@ static int toshiba_bt_rfkill_remove(struct acpi_device *device)
kfree(bt_dev);
return toshiba_bluetooth_disable(device->handle);
toshiba_bluetooth_disable(device->handle);
}
module_acpi_driver(toshiba_bt_rfkill_driver);

4
drivers/platform/x86/toshiba_haps.c
View File

@ -138,14 +138,12 @@ static void toshiba_haps_notify(struct acpi_device *device, u32 event)
event, 0);
}
static int toshiba_haps_remove(struct acpi_device *device)
static void toshiba_haps_remove(struct acpi_device *device)
{
sysfs_remove_group(&device->dev.kobj, &haps_attr_group);
if (toshiba_haps)
toshiba_haps = NULL;
return 0;
}
/* Helper function */

3
drivers/platform/x86/wireless-hotkey.c
View File

@ -83,10 +83,9 @@ static int wl_add(struct acpi_device *device)
return err;
}
static int wl_remove(struct acpi_device *device)
static void wl_remove(struct acpi_device *device)
{
wireless_input_destroy();
return 0;
}
static struct acpi_driver wl_driver = {

3
drivers/platform/x86/xo15-ebook.c
View File

@ -143,13 +143,12 @@ static int ebook_switch_add(struct acpi_device *device)
return error;
}
static int ebook_switch_remove(struct acpi_device *device)
static void ebook_switch_remove(struct acpi_device *device)
{
struct ebook_switch *button = acpi_driver_data(device);
input_unregister_device(button->input);
kfree(button);
return 0;
}
static struct acpi_driver xo15_ebook_driver = {

3
drivers/ptp/ptp_vmw.c
View File

@ -101,10 +101,9 @@ static int ptp_vmw_acpi_add(struct acpi_device *device)
return 0;
}
static int ptp_vmw_acpi_remove(struct acpi_device *device)
static void ptp_vmw_acpi_remove(struct acpi_device *device)
{
ptp_clock_unregister(ptp_vmw_clock);
return 0;
}
static const struct acpi_device_id ptp_vmw_acpi_device_ids[] = {

8
drivers/thermal/intel/intel_menlow.c
View File

@ -179,22 +179,20 @@ static int intel_menlow_memory_add(struct acpi_device *device)
}
static int intel_menlow_memory_remove(struct acpi_device *device)
static void intel_menlow_memory_remove(struct acpi_device *device)
{
struct thermal_cooling_device *cdev;
if (!device)
return -EINVAL;
return;
cdev = acpi_driver_data(device);
if (!cdev)
return -EINVAL;
return;
sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
sysfs_remove_link(&cdev->device.kobj, "device");
thermal_cooling_device_unregister(cdev);
return 0;
}
static const struct acpi_device_id intel_menlow_memory_ids[] = {

3
drivers/video/backlight/apple_bl.c
View File

@ -193,13 +193,12 @@ static int apple_bl_add(struct acpi_device *dev)
return 0;
}
static int apple_bl_remove(struct acpi_device *dev)
static void apple_bl_remove(struct acpi_device *dev)
{
backlight_device_unregister(apple_backlight_device);
release_region(hw_data->iostart, hw_data->iolen);
hw_data = NULL;
return 0;
}
static const struct acpi_device_id apple_bl_ids[] = {

4
drivers/watchdog/ni903x_wdt.c
View File

@ -224,14 +224,12 @@ static int ni903x_acpi_add(struct acpi_device *device)
return 0;
}
static int ni903x_acpi_remove(struct acpi_device *device)
static void ni903x_acpi_remove(struct acpi_device *device)
{
struct ni903x_wdt *wdt = acpi_driver_data(device);
ni903x_wdd_stop(&wdt->wdd);
watchdog_unregister_device(&wdt->wdd);
return 0;
}
static const struct acpi_device_id ni903x_device_ids[] = {

3
drivers/xen/xen-acpi-pad.c
View File

@ -122,7 +122,7 @@ static int acpi_pad_add(struct acpi_device *device)
return 0;
}
static int acpi_pad_remove(struct acpi_device *device)
static void acpi_pad_remove(struct acpi_device *device)
{
mutex_lock(&xen_cpu_lock);
xen_acpi_pad_idle_cpus(0);
@ -130,7 +130,6 @@ static int acpi_pad_remove(struct acpi_device *device)
acpi_remove_notify_handler(device->handle,
ACPI_DEVICE_NOTIFY, acpi_pad_notify);
return 0;
}
static const struct acpi_device_id pad_device_ids[] = {

2
include/acpi/acpi_bus.h
View File

@ -149,7 +149,7 @@ struct acpi_hotplug_context {
*/
typedef int (*acpi_op_add) (struct acpi_device * device);
typedef int (*acpi_op_remove) (struct acpi_device * device);
typedef void (*acpi_op_remove) (struct acpi_device *device);
typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
struct acpi_device_ops {