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platform/x86: asus-wmi: Do not disable keyboard backlight on unloading 

The keyboard backlight is automatically disabled when the module is
unloaded as it is exposed as a ledclass device. Change this behavior to
ignore setting brightness when the device is in unloading state.

Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Yurii Pavlovskyi 2019-05-14 21:07:46 +02:00 committed by Andy Shevchenko
parent b096f626a6
commit 3e58167ac3
1 changed files with 4 additions and 0 deletions
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4
drivers/platform/x86/asus-wmi.c
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@ -471,6 +471,10 @@ static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
static void kbd_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
/* Prevent disabling keyboard backlight on module unregister */
if (led_cdev->flags & LED_UNREGISTERING)
return;
do_kbd_led_set(led_cdev, value);
}