rhbz#1215443 avoid null pointer dereference

Change-Id: I0a7986703a6997c756d583d0e46907691f807b16
diff --git a/editeng/source/editeng/impedit3.cxx b/editeng/source/editeng/impedit3.cxx
index 9dca951..427f333 100644
--- a/editeng/source/editeng/impedit3.cxx
+++ b/editeng/source/editeng/impedit3.cxx
@@ -3467,7 +3467,8 @@ void ImpEditEngine::Paint( OutputDevice* pOutDev, Rectangle aClipRect, Point aSt
                                        }
                                    }

                                    if ( GetStatus().DoOnlineSpelling() && !pPortion->GetNode()->GetWrongList()->empty() && pTextPortion->GetLen() )
                                    const WrongList* const pWrongList = pPortion->GetNode()->GetWrongList();
                                    if ( GetStatus().DoOnlineSpelling() && pWrongList && !pWrongList->empty() && pTextPortion->GetLen() )
                                    {
                                        {//#105750# adjust LinePos for superscript or subscript text
                                            short _nEsc = aTmpFont.GetEscapement();