From 40f474f3572064632fafc804814f5f5a887ccb79 Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Fri, 10 Nov 2017 12:09:08 +0300
Subject: [PATCH] 0023504: [CEA 2193] Segmentation fault at SALOME close
 (GEOM/Preferences)

---
 src/LightApp/LightApp_Application.cxx | 10 ++++++++++
 src/LightApp/LightApp_Application.h   |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/src/LightApp/LightApp_Application.cxx b/src/LightApp/LightApp_Application.cxx
index e770b1508..529725ad4 100644
--- a/src/LightApp/LightApp_Application.cxx
+++ b/src/LightApp/LightApp_Application.cxx
@@ -246,6 +246,14 @@ int LightApp_Application::lastStudyId = 0;
 //since the 'toolbar marker' is not unique, find index of first occurrence of the
 //'toolbar marker' in the array and check that next string is name of the toolbar
 
+void LightAppCleanUpAppResources()
+{
+  if ( LightApp_Application::_prefs_ ) {
+    delete LightApp_Application::_prefs_;
+    LightApp_Application::_prefs_ = 0;
+  }
+}
+
 namespace
 {
   int getToolbarMarkerIndex( QByteArray input, const QStringList& aFlags ) {
@@ -439,6 +447,7 @@ LightApp_Application::~LightApp_Application()
   savePreferences();
   delete mySelMgr;
   delete myScreenHelper;
+  myPrefs = 0;
 }
 
 /*!Start application.*/
@@ -2128,6 +2137,7 @@ LightApp_Preferences* LightApp_Application::preferences( const bool crt ) const
   {
     _prefs_ = new LightApp_Preferences( resourceMgr() );
     that->createPreferences( _prefs_ );
+    qAddPostRoutine( LightAppCleanUpAppResources );
   }
 
   that->myPrefs = _prefs_;
diff --git a/src/LightApp/LightApp_Application.h b/src/LightApp/LightApp_Application.h
index b7d2fb9ec..cd9ce2e15 100644
--- a/src/LightApp/LightApp_Application.h
+++ b/src/LightApp/LightApp_Application.h
@@ -343,6 +343,8 @@ protected:
 
   static int                          lastStudyId;
   QStringList                         myUserWmTypes;
+
+  friend void LightAppCleanUpAppResources();
 };
 
 #ifdef WIN32
-- 
2.39.2