Reduce the amount of mutexed code

Change-Id: Ic0dfe488ba8aafb0f3ca3a2b6209d59484d07af8
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/plugins/geoservices/osm/qgeofiletilecacheosm.cpp b/src/plugins/geoservices/osm/qgeofiletilecacheosm.cpp
index f932d3de..a759edf4 100644
--- a/src/plugins/geoservices/osm/qgeofiletilecacheosm.cpp
+++ b/src/plugins/geoservices/osm/qgeofiletilecacheosm.cpp
@@ -163,11 +163,12 @@ QSharedPointer<QGeoTileTexture> QGeoFileTileCacheOsm::getFromOfflineStorage(cons
 {
     QMutexLocker locker(&storageLock);
     if (m_tilespecToOfflineFilepath.contains(spec)) {
-        QFile file(m_tilespecToOfflineFilepath[spec]);
+        const QString fileName = m_tilespecToOfflineFilepath[spec];
+        locker.unlock();
+        QFile file(fileName);
         file.open(QIODevice::ReadOnly);
         QByteArray bytes = file.readAll();
         file.close();
-        locker.unlock();
 
         QImage image;
         if (!image.loadFromData(bytes)) {