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    Subject[PATCH v3 11/11] platform/x86: asus-wmi: Do not disable keyboard backlight on unloading
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    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>
    ---
    drivers/platform/x86/asus-wmi.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
    index 7974283b7b12..02c9639bf54f 100644
    --- a/drivers/platform/x86/asus-wmi.c
    +++ b/drivers/platform/x86/asus-wmi.c
    @@ -483,6 +483,10 @@ 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);
    }

    --
    2.17.1
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