bug fix: use after free

canframemodel.cpp

@@ -3,6 +3,15 @@
 #include <QFile>
 #include "utility.h"
 
+
+CANFrameModel::~CANFrameModel()
+{
+    frames.clear();
+    filteredFrames.clear();
+    filters.clear();
+}
+
+
 int CANFrameModel::rowCount(const QModelIndex &parent) const
 {
     Q_UNUSED(parent);

canframemodel.h

@@ -16,6 +16,7 @@ class CANFrameModel: public QAbstractTableModel
 
 public:
     CANFrameModel(QObject *parent = 0);
+    virtual ~CANFrameModel();
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const;
     QVariant data(const QModelIndex &index, int role) const;

mainwindow.cpp

@@ -273,12 +273,11 @@ MainWindow::~MainWindow()
         snifferWindow = NULL;
     }
 
-    delete elapsedTime;
 
-    delete ui;
-    delete dbcHandler;
-    model->clearFrames();
     delete model;
+    delete elapsedTime;
+    delete dbcHandler;
+    delete ui;
 }
 
 void MainWindow::exitApp()