3 files changed, 5 insertions, 5 deletions
diff --git a/embeddedobj/source/inc/oleembobj.hxx b/embeddedobj/source/inc/oleembobj.hxx
index f5dca11e67ab..84680366b5db 100644
--- a/embeddedobj/source/inc/oleembobj.hxx
+++ b/embeddedobj/source/inc/oleembobj.hxx
@@ -254,7 +254,7 @@ protected:
     bool HasVisReplInStream();
 
     css::embed::VisualRepresentation GetVisualRepresentationInNativeFormat_Impl(
-                    const css::uno::Reference< css::io::XStream > xCachedVisRepr )
+                    const css::uno::Reference< css::io::XStream >& xCachedVisRepr )
         throw ( css::uno::Exception );
 
     css::uno::Reference< css::io::XStream > TryToRetrieveCachedVisualRepresentation_Impl(
diff --git a/embeddedobj/source/msole/oleembed.cxx b/embeddedobj/source/msole/oleembed.cxx
index 473df8956c2b..6d42cabcebdd 100644
--- a/embeddedobj/source/msole/oleembed.cxx
+++ b/embeddedobj/source/msole/oleembed.cxx
@@ -664,7 +664,7 @@ sal_Int32 SAL_CALL OleEmbeddedObject::getCurrentState()
 namespace
 {
 #ifndef _WIN32
-    bool lcl_CopyStream(uno::Reference<io::XInputStream> xIn, uno::Reference<io::XOutputStream> xOut)
+    bool lcl_CopyStream(const uno::Reference<io::XInputStream>& xIn, const uno::Reference<io::XOutputStream>& xOut)
     {
         const sal_Int32 nChunkSize = 4096;
         uno::Sequence< sal_Int8 > aData(nChunkSize);
@@ -683,8 +683,8 @@ namespace
     //Dump the objects content to a tempfile, just the "CONTENTS" stream if
     //there is one for non-compound documents, otherwise the whole content.
     //On success a file is returned which must be removed by the caller
-    OUString lcl_ExtractObject(css::uno::Reference< css::lang::XMultiServiceFactory > xFactory,
-        css::uno::Reference< css::io::XStream > xObjectStream)
+    OUString lcl_ExtractObject(const css::uno::Reference< css::lang::XMultiServiceFactory >& xFactory,
+        const css::uno::Reference< css::io::XStream >& xObjectStream)
     {
         OUString sUrl;
 
diff --git a/embeddedobj/source/msole/olevisual.cxx b/embeddedobj/source/msole/olevisual.cxx
index d53ef5fea033..0445c09a94dc 100644
--- a/embeddedobj/source/msole/olevisual.cxx
+++ b/embeddedobj/source/msole/olevisual.cxx
@@ -38,7 +38,7 @@ using namespace ::com::sun::star;
 using namespace ::comphelper;
 
 embed::VisualRepresentation OleEmbeddedObject::GetVisualRepresentationInNativeFormat_Impl(
-                    const uno::Reference< io::XStream > xCachedVisRepr )
+                    const uno::Reference< io::XStream >& xCachedVisRepr )
         throw ( uno::Exception )
 {
     embed::VisualRepresentation aVisualRepr;