--- x/drivers/hid/hid-corsair.c
+++ y/drivers/hid/hid-corsair.c
@@ -524,6 +524,7 @@ static void k90_cleanup_backlight(struct
 
 	if (drvdata->backlight) {
 		drvdata->backlight->removed = true;
+		disable_work(&drvdata->backlight->work);
 		cancel_work_sync(&drvdata->backlight->work);
 		led_classdev_unregister(&drvdata->backlight->cdev);
 		kfree(drvdata->backlight->cdev.name);