[Kicad-developers] patch: pcbnew. fix memory leak in printing dialog

[Sergey A. Borshch]

If user tries to generate print preview with no layer selected, *preview object 
not destroyed and memory leaks.

--
Regards,
  Sergey A. Borshch            mailto: sb...@sourceforge.net
    SB ELDI ltd. Riga, Latvia
=== modified file 'pcbnew/dialogs/dialog_print_using_printer.cpp'
--- pcbnew/dialogs/dialog_print_using_printer.cpp       2012-11-29 01:50:58 
+0000
+++ pcbnew/dialogs/dialog_print_using_printer.cpp       2013-03-11 00:32:29 
+0000
@@ -449,6 +452,7 @@
     if( s_Parameters.m_PrintMaskLayer == 0 )
     {
         DisplayError( this, _( "No layer selected" ) );
+        delete preview;
         return;
     }

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