coverity#1132691 Dereference null return value

Change-Id: I0da2f6956cf7675cce0d7d82a0ec797b50542c7f

sfx2/source/appl/app.cxx

@@ -608,6 +608,11 @@ void SfxApplication::MacroOrganizer( sal_Int16 nTabId )
     OUString aSymbol( "basicide_macro_organizer"  );
     basicide_macro_organizer pSymbol = (basicide_macro_organizer) osl_getFunctionSymbol( handleMod, aSymbol.pData );
 
+    SAL_WARN_IF(!pSymbol, "sfx.doc", "SfxApplication::MacroOrganizer, no symbol!");
+
+    if (!pSymbol)
+        return;
+
     // call basicide_macro_organizer in basctl
     pSymbol( nTabId );