From c2d72109b626c656b095134da532e9250ca2dda7 Mon Sep 17 00:00:00 2001
From: Matthieu Gallien <matthieu.gallien@nextcloud.com>
Date: Thu, 13 Apr 2023 18:41:44 +0200
Subject: [PATCH] protext all access to _logstream with the existing mutex

Signed-off-by: Matthieu Gallien <matthieu.gallien@nextcloud.com>
---
 src/libsync/logger.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libsync/logger.cpp b/src/libsync/logger.cpp
index 42830d32f..d38be4c6b 100644
--- a/src/libsync/logger.cpp
+++ b/src/libsync/logger.cpp
@@ -118,7 +118,6 @@ void Logger::doLog(QtMsgType type, const QMessageLogContext &ctx, const QString
     cout << msg << endl;
 #endif
     {
-        QMutexLocker lock(&_mutex);
         if (_logFile.size() >= MaxLogSizeBytes) {
             close();
             enterNextLogFile();
@@ -127,6 +126,8 @@ void Logger::doLog(QtMsgType type, const QMessageLogContext &ctx, const QString
         _crashLogIndex = (_crashLogIndex + 1) % CrashLogSize;
         _crashLog[_crashLogIndex] = msg;
 
+        QMutexLocker lock(&_mutex);
+
         if (_logstream) {
             (*_logstream) << msg << Qt::endl;
             if (_doFileFlush)
@@ -145,6 +146,7 @@ void Logger::doLog(QtMsgType type, const QMessageLogContext &ctx, const QString
 
 void Logger::close()
 {
+    QMutexLocker lock(&_mutex);
     dumpCrashLog();
     if (_logstream)
     {
-- 
2.30.2