From 73e30f782df0b008a09e5b66f352857ce600b817 Mon Sep 17 00:00:00 2001
From: David Schulz <david.schulz@qt.io>
Date: Fri, 19 Nov 2021 10:31:19 +0100
Subject: [PATCH] LanguageClient: prevent crash in LanguageClientManager

This also prevents assigning a client to a nullptr document.

Change-Id: Iacefe141a08fd47e69faacd4b0cd156c264ac19b
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
---
 src/plugins/languageclient/languageclientmanager.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/plugins/languageclient/languageclientmanager.cpp b/src/plugins/languageclient/languageclientmanager.cpp
index fd54d777005..0e5a80013b8 100644
--- a/src/plugins/languageclient/languageclientmanager.cpp
+++ b/src/plugins/languageclient/languageclientmanager.cpp
@@ -420,6 +420,8 @@ const QList<Client *> LanguageClientManager::clientsForProject(
 
 void LanguageClientManager::openDocumentWithClient(TextEditor::TextDocument *document, Client *client)
 {
+    if (!document)
+        return;
     Client *currentClient = clientForDocument(document);
     if (client == currentClient)
         return;