diff -r 98a43fae6e2b -r 741e5bba2bd1 installationservices/swi/source/sishelper/sishelperclient.cpp
--- a/installationservices/swi/source/sishelper/sishelperclient.cpp	Tue Apr 27 16:46:15 2010 +0300
+++ b/installationservices/swi/source/sishelper/sishelperclient.cpp	Tue May 11 16:20:28 2010 +0300
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+* Copyright (c) 2004-2010 Nokia Corporation and/or its subsidiary(-ies).
 * All rights reserved.
 * This component and the accompanying materials are made available
 * under the terms of the License "Eclipse Public License v1.0"
@@ -104,6 +104,9 @@
 EXPORT_C void RSisHelper::FillDrivesAndSpacesL(RArray<TChar>& aDriveLetters, 
 	RArray<TInt64>& aDriveSpaces)
 	{
+	CleanupClosePushL(aDriveLetters);
+	CleanupClosePushL(aDriveSpaces);
+	
 	// calculate the likely size of the data transfer buffer
 	const TInt KMaxBufSize=
 		sizeof(TInt)+                 // number of entries
@@ -143,6 +146,7 @@
 	
 	// cleanup
 	CleanupStack::PopAndDestroy(2, buf); // ins, buf
+	CleanupStack::Pop(2, &aDriveLetters);
 	}
 
 EXPORT_C void RSisHelper::OpenDrmContentL(ContentAccess::TIntent aIntent)
@@ -264,6 +268,7 @@
 #endif
 void RSisHelper::GetEquivalentLanguageListL(TLanguage aLangId,RArray<TLanguage>& aEquivLangs)
 	{
+	CleanupClosePushL(aEquivLangs);
 	// calculate the likely size of the data transfer buffer
 	const TInt KMaxBufSize=
 		sizeof(TInt)+                 // number of entries
@@ -291,4 +296,5 @@
 		}
 	// cleanup
 	CleanupStack::PopAndDestroy(2, buf); // buf
+	CleanupStack::Pop(&aEquivLangs);
 	}