diff -r 7333d7932ef7 -r 8b7f4e561641 installationservices/swi/source/sishelper/sishelper.cpp
--- a/installationservices/swi/source/sishelper/sishelper.cpp	Tue Aug 31 15:21:33 2010 +0300
+++ b/installationservices/swi/source/sishelper/sishelper.cpp	Wed Sep 01 12:22:02 2010 +0100
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* Copyright (c) 1997-2010 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"
@@ -511,6 +511,8 @@
 void CSisHelperSession::FillDrivesAndSpacesL(RArray<TChar>& aDriveLetters, 
 					                        RArray<TInt64>& aDriveSpaces)
 	{
+	CleanupClosePushL(aDriveLetters);
+	CleanupClosePushL(aDriveSpaces);
 	// This is the LFSS free space threshold
 	TInt freeSpaceAdjustment = 1024 * 128;    // Bytes	
 
@@ -566,6 +568,7 @@
         User::LeaveIfError(aDriveSpaces.Append(volSpace));
         }
     CleanupStack::PopAndDestroy(&fs);
+    CleanupStack::Pop(2, &aDriveLetters);
 	}