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Message-ID: <00efe227-9db9-8709-2de2-d863166c5437@gmail.com> Date: Thu, 11 Apr 2019 07:48:19 +0200 From: Yurii Pavlovskyi <yurii.pavlovskyi@...il.com> To: unlisted-recipients:; (no To-header on input) Cc: Corentin Chary <corentin.chary@...il.com>, Darren Hart <dvhart@...radead.org>, Andy Shevchenko <andy@...radead.org>, Daniel Drake <drake@...lessm.com>, acpi4asus-user@...ts.sourceforge.net, platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2 11/11] platform/x86: asus-wmi: Do not disable keyboard backlight on unload The keyboard backlight is disabled when module is unloaded as it is exposed as LED device. Change this behavior to ignore setting 0 brightness when the ledclass device is unloading. Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@...il.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 f0e506feb924..f49992fa87b3 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -475,6 +475,10 @@ 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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