diff -r 883e91c086aa -r 48c22c726cf9 mtpfws/mtpfw/dataproviders/devdp/src/cmtpdevicedp.cpp
--- a/mtpfws/mtpfw/dataproviders/devdp/src/cmtpdevicedp.cpp	Tue Jul 06 15:13:34 2010 +0300
+++ b/mtpfws/mtpfw/dataproviders/devdp/src/cmtpdevicedp.cpp	Wed Aug 18 10:38:51 2010 +0300
@@ -388,7 +388,9 @@
 
 		if(extnpluginMap )
 			{
-			iExtnPluginMapArray.Append(extnpluginMap);
+            CleanupStack::PushL(extnpluginMap);
+			iExtnPluginMapArray.AppendL(extnpluginMap);
+			CleanupStack::Pop(extnpluginMap);
 			}
 
 		}
@@ -481,7 +483,7 @@
     
     __ASSERT_ALWAYS( isFolder, User::Leave( KErrArgument ));
     __ASSERT_ALWAYS( aParentHandle != KMTPHandleNone, User::Leave( KErrArgument ));
-    __ASSERT_ALWAYS( Framework().StorageMgr().ValidStorageId( aStorageId ), User::Invariant());
+    __ASSERT_ALWAYS( Framework().StorageMgr().ValidStorageId( aStorageId ), User::Leave( KErrArgument ));
 
     __FLOG_VA((_L16("Add Entry for Path:%S"), &aPath ));
     aObjectInfo.SetUint( CMTPObjectMetaData::EDataProviderId, Framework().DataProviderId() );