Coverity fixes.

common/gal/opengl/gpu_manager.cpp

@@ -55,7 +55,7 @@ GPU_MANAGER* GPU_MANAGER::MakeManager( VERTEX_CONTAINER* aContainer )
 
 
 GPU_MANAGER::GPU_MANAGER( VERTEX_CONTAINER* aContainer ) :
-    m_isDrawing( false ), m_container( aContainer ), m_shader( NULL )
+    m_isDrawing( false ), m_container( aContainer ), m_shader( NULL ), m_shaderAttrib( 0 )
 {
 }
 
@@ -80,8 +80,8 @@ void GPU_MANAGER::SetShader( SHADER& aShader )
 
 // Cached manager
 GPU_CACHED_MANAGER::GPU_CACHED_MANAGER( VERTEX_CONTAINER* aContainer ) :
-    GPU_MANAGER( aContainer ), m_buffersInitialized( false ),
-    m_indicesSize( 0 )
+    GPU_MANAGER( aContainer ), m_buffersInitialized( false ), m_indicesPtr( NULL ),
+    m_verticesBuffer( 0 ), m_indicesBuffer( 0 ), m_indicesSize( 0 )
 {
     // Allocate the biggest possible buffer for indices
     m_indices.reset( new GLuint[aContainer->GetSize()] );

common/geometry/seg.cpp

@@ -52,7 +52,7 @@ bool SEG::PointCloserThan( const VECTOR2I& aP, int aDist ) const
         int cb = sgn( d.x );
         int cc = -ca * A.x - cb * A.y;
 
-        ecoord num = ca * aP.x + cb * aP.y + cc;
+        ecoord num = (ecoord) ca * aP.x + (ecoord) cb * aP.y + cc;
         num *= num;
 
         if( ca && cb )

pcbnew/dialogs/dialog_pad_properties.cpp

@@ -934,7 +934,7 @@ void DIALOG_PAD_PROPERTIES::PadPropertiesAccept( wxCommandEvent& event )
             {
                 DisplayError( NULL, _( "Unknown netname, netname not changed" ) );
             }
-            else
+            else if( netinfo )
             {
                 rastnestIsChanged = true;
                 m_currentPad->SetNetCode( netinfo->GetNet() );

pcbnew/tools/selection_tool.cpp

@@ -1301,6 +1301,8 @@ void SELECTION_TOOL::generateMenu()
 
     // Filter out entries that does not apply to the current selection
     for( int i = m_menuCopy.GetMenuItemCount() - 1; i >= 0; --i )
+    {
+        try
         {
             if( !m_menuConditions[i]( m_selection ) )
             {
@@ -1308,6 +1310,14 @@ void SELECTION_TOOL::generateMenu()
                 m_menuCopy.Destroy( item );
             }
         }
+        catch( boost::bad_function_call )
+        {
+            // If it is not possible to determine if a menu entry should be
+            // shown or not - do not let users pick non-existing options
+            wxMenuItem* item = m_menuCopy.FindItemByPosition( i );
+            m_menuCopy.Destroy( item );
+        }
+    }
 
     if( m_menuCopy.GetMenuItemCount() > 0 )
         SetContextMenu( &m_menuCopy, CMENU_NOW );