kde5: avoid crash with null surface

Change-Id: Ie63e62995bee0fd950cea0668f5ae06c903b25a3
2017-10-04 21:57:56 +02:00
parent 72c28fb1be
commit 637bbffa30
1 changed files with 2 additions and 1 deletions
--- a/vcl/unx/kde5/KDE5SalFrame.cxx
+++ b/vcl/unx/kde5/KDE5SalFrame.cxx
@@ -340,6 +340,7 @@ void KDE5SalFrame::ReleaseGraphics( SalGraphics *pGraphics )
        if( m_aGraphics[i].pGraphics.get() == pGraphics )
        {
            m_aGraphics[i].bInUse = false;
+            if ( m_aGraphics[i].pSurface != nullptr )
                cairo_surface_destroy( m_aGraphics[i].pSurface );
            break;
        }