[PATCH 06/10] platform/x86: toshiba_acpi: use devm_led_classdev_register() for LEDs

[Alexandru Ardelean]

With this change the deregistration of the LED objects is made symmetrical
(and in reverse) with the registration. We also can get rid of the calls
to led_classdev_unregister(), because the LED objects will be cleaned up
when the reference to the parent device object goes to zero.

This change also unifies the reference to the parent object from
'&acpi_dev->dev' and '&dev->acpi_dev->dev' to 'parent', since it's the same
reference, and makes the code-lines a bit shorter.

Signed-off-by: Alexandru Ardelean <aardel...@deviqon.com>
---
 drivers/platform/x86/toshiba_acpi.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c 
b/drivers/platform/x86/toshiba_acpi.c
index ada2a2d8c913..e787c140eec2 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -3001,10 +3001,6 @@ static int toshiba_acpi_remove(struct acpi_device 
*acpi_dev)
                sysfs_remove_group(&dev->acpi_dev->dev.kobj,
                                   &toshiba_attr_group);
 
-       led_classdev_unregister(&dev->led_dev);
-       led_classdev_unregister(&dev->kbd_led);
-       led_classdev_unregister(&dev->eco_led);
-
        if (dev->wwan_rfk) {
                rfkill_unregister(dev->wwan_rfk);
                rfkill_destroy(dev->wwan_rfk);
@@ -3114,7 +3110,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
                dev->led_dev.max_brightness = 1;
                dev->led_dev.brightness_set = toshiba_illumination_set;
                dev->led_dev.brightness_get = toshiba_illumination_get;
-               led_classdev_register(&acpi_dev->dev, &dev->led_dev);
+               ret = devm_led_classdev_register(parent, &dev->led_dev);
+               if (ret)
+                       return ret;
        }
 
        toshiba_eco_mode_available(dev);
@@ -3123,7 +3121,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
                dev->eco_led.max_brightness = 1;
                dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
                dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
-               led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
+               ret = devm_led_classdev_register(parent, &dev->eco_led);
+               if (ret)
+                       return ret;
        }
 
        toshiba_kbd_illum_available(dev);
@@ -3139,7 +3139,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
                dev->kbd_led.max_brightness = 1;
                dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
                dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
-               led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
+               ret = devm_led_classdev_register(parent, &dev->kbd_led);
+               if (ret)
+                       return ret;
        }
 
        ret = toshiba_touchpad_get(dev, &dummy);
-- 
2.30.2