From 74d7369b4f68ebdee7470c9205aebb5021521fb3 Mon Sep 17 00:00:00 2001
From: zhen-zen <66577170+zhen-zen@users.noreply.github.com>
Date: Sun, 16 May 2021 22:59:28 -0700
Subject: [PATCH] Fix fallback panel handling (#10)

---
 BrightnessKeys/BrightnessKeys.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BrightnessKeys/BrightnessKeys.cpp b/BrightnessKeys/BrightnessKeys.cpp
index 830e694..fb72db5 100644
--- a/BrightnessKeys/BrightnessKeys.cpp
+++ b/BrightnessKeys/BrightnessKeys.cpp
@@ -111,7 +111,7 @@ void BrightnessKeys::getBrightnessPanel() {
         //
         // Some vendors just won't follow the specs and update their code
         //
-        if (strncmp(_panel->getName(), "DD02", strlen("DD02"))) {
+        if (_panel == nullptr || strncmp(_panel->getName(), "DD02", strlen("DD02"))) {
             auto fallbackPanel = info->videoBuiltin->childFromPath("DD02", gIODTPlane);
             if (fallbackPanel != nullptr) {
                 _panelFallback = getAcpiDevice(fallbackPanel);