[partition] Simplify DeviceModel sorting

src/modules/partition/core/DeviceModel.cpp

@@ -36,6 +36,15 @@
 // STL
 #include <algorithm>
 
+static void
+sortDevices( DeviceModel::DeviceList& l )
+{
+   std::sort( l.begin(), l.end(), []( const Device* dev1, const Device* dev2 )
+    {
+        return dev1->deviceNode() < dev2->deviceNode();
+    } );
+}
+
 DeviceModel::DeviceModel( QObject* parent )
     : QAbstractListModel( parent )
 {
@@ -50,10 +59,7 @@ DeviceModel::init( const DeviceList& devices )
 {
     beginResetModel();
     m_devices = devices;
-    std::sort( m_devices.begin(), m_devices.end(), []( const Device* dev1, const Device* dev2 )
-    {
-        return dev1->deviceNode() < dev2->deviceNode();
-    } );
+    sortDevices( m_devices );
     endResetModel();
 }
 
@@ -131,13 +137,8 @@ void
 DeviceModel::addDevice( Device *device )
 {
     beginResetModel();
-
     m_devices << device;
-    std::sort( m_devices.begin(), m_devices.end(), []( const Device* dev1, const Device* dev2 )
-    {
-        return dev1->deviceNode() < dev2->deviceNode();
-    } );
-
+    sortDevices( m_devices );
     endResetModel();
 }
 
@@ -145,12 +146,7 @@ void
 DeviceModel::removeDevice( Device *device )
 {
     beginResetModel();
-
     m_devices.removeAll( device );
-    std::sort( m_devices.begin(), m_devices.end(), []( const Device* dev1, const Device* dev2 )
-    {
-        return dev1->deviceNode() < dev2->deviceNode();
-    } );
-
+    sortDevices( m_devices );
     endResetModel();
 }