there may be no storage available in older formats

Change-Id: I23cbaf7fc1320168eb75ca33fd6d704125508785
(cherry picked from commit 666fb214)
Reviewed-on: https://gerrit.libreoffice.org/17982Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Michael Meeks <michael.meeks@collabora.com>

sw/source/filter/ww8/ww8par4.cxx

@@ -337,8 +337,11 @@ bool SwWW8ImplReader::ImportOleWMF(tools::SvRef<SotStorage> xSrc1,GDIMetaFile &r
 SdrObject* SwWW8ImplReader::ImportOleBase( Graphic& rGraph,
     const Graphic* pGrf, const SfxItemSet* pFlySet, const Rectangle& aVisArea )
 {
-    SdrObject* pRet = 0;
-    OSL_ENSURE( m_pStg, "ohne storage geht hier fast gar nichts!" );
+    if (!m_pStg)
+    {
+        SAL_WARN("sw.ww8", "no storage for ole objects");
+        return nullptr;
+    }
 
     ::SetProgressState( m_nProgress, m_rDoc.GetDocShell() );     // Update
 
@@ -390,6 +393,8 @@ SdrObject* SwWW8ImplReader::ImportOleBase( Graphic& rGraph,
         }
     }
 
+    SdrObject* pRet = 0;
+
     if (!(m_bIsHeader || m_bIsFooter))
     {
         //Can't put them in headers/footers :-(