improve passstuffbyref return analysis

Change-Id: I4258bcc97273d8bb7a8c4879fac02a427f76e18c
Reviewed-on: https://gerrit.libreoffice.org/27317
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/connectivity/source/drivers/hsqldb/HDriver.cxx b/connectivity/source/drivers/hsqldb/HDriver.cxx
index 1a0ef32a0551..3da41939886d 100644
--- a/connectivity/source/drivers/hsqldb/HDriver.cxx
+++ b/connectivity/source/drivers/hsqldb/HDriver.cxx
@@ -124,7 +124,7 @@ namespace connectivity
         cppu::WeakComponentImplHelperBase::disposing();
     }
 
-    Reference< XDriver > ODriverDelegator::loadDriver( )
+    Reference< XDriver > const & ODriverDelegator::loadDriver( )
     {
         if ( !m_xDriver.is() )
         {
diff --git a/connectivity/source/drivers/hsqldb/HStorageMap.cxx b/connectivity/source/drivers/hsqldb/HStorageMap.cxx
index cad5fbde4beb..e79718a18f65 100644
--- a/connectivity/source/drivers/hsqldb/HStorageMap.cxx
+++ b/connectivity/source/drivers/hsqldb/HStorageMap.cxx
@@ -79,21 +79,21 @@ namespace connectivity
             }
         }
 
-        Reference< XInputStream> StreamHelper::getInputStream()
+        Reference< XInputStream> const & StreamHelper::getInputStream()
         {
             if ( !m_xInputStream.is() )
                 m_xInputStream = m_xStream->getInputStream();
             return m_xInputStream;
         }
 
-        Reference< XOutputStream> StreamHelper::getOutputStream()
+        Reference< XOutputStream> const & StreamHelper::getOutputStream()
         {
             if ( !m_xOutputStream.is() )
                 m_xOutputStream = m_xStream->getOutputStream();
             return m_xOutputStream;
         }
 
-        Reference< XSeekable> StreamHelper::getSeek()
+        Reference< XSeekable> const & StreamHelper::getSeek()
         {
             if ( !m_xSeek.is() )
                 m_xSeek.set(m_xStream,UNO_QUERY);