From c7f2e0fa6ab599ae6fffd3c836085ded8ec3a628 Mon Sep 17 00:00:00 2001
From: April & May & June <us@calsys.org>
Date: Tue, 27 Jan 2026 16:16:15 +0800
Subject: [PATCH] fix: fix ddm crash on treeland crash

The problem is caused by reckless cleanup process. Check those pointers
carefully to make reconnection works.
---
 src/daemon/TreelandConnector.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/daemon/TreelandConnector.cpp b/src/daemon/TreelandConnector.cpp
index f950760..3e3a9ba 100644
--- a/src/daemon/TreelandConnector.cpp
+++ b/src/daemon/TreelandConnector.cpp
@@ -220,10 +220,16 @@ void TreelandConnector::connect(QString socketPath) {
 
 void TreelandConnector::disconnect() {
     if (m_display) {
-        m_notifier->setEnabled(false);
+        if (m_notifier)
+            m_notifier->setEnabled(false);
         wl_display_disconnect(m_display);
-        delete m_notifier;
+        if (m_notifier) {
+            m_notifier->deleteLater();
+            m_notifier = nullptr;
+        }
+        m_display = nullptr;
     }
+    m_ddm = nullptr;
 }
 
 // Request wrapper