From b78258e46411103a5a3c9e953ba6dd5c78340e5d Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Thu, 31 Aug 2023 10:15:37 +0300
Subject: [PATCH] backends/drm: Guard against null crtc in
 DrmPipeline::updateCursor

The null check was lost in fe1d4ffbc593a96df822fb90051ed8d4a14b7fc4.

BUG: 473963
---
 src/backends/drm/drm_pipeline.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/backends/drm/drm_pipeline.cpp b/src/backends/drm/drm_pipeline.cpp
index a6a1d6fc97..6757353e70 100644
--- a/src/backends/drm/drm_pipeline.cpp
+++ b/src/backends/drm/drm_pipeline.cpp
@@ -363,6 +363,9 @@ void DrmPipeline::atomicCommitSuccessful()
 
 bool DrmPipeline::updateCursor()
 {
+    if (!m_pending.crtc) {
+        return false;
+    }
     bool result;
     // explicitly check for the cursor plane and not for AMS, as we might not always have one
     if (m_pending.crtc->cursorPlane()) {