[tkreuzer] 56326: [PORTCLS] Fix broken "pointer arithmetics"

Author: tkreuzer
Date: Tue Apr  3 14:43:52 2012
New Revision: 56326

URL: http://svn.reactos.org/svn/reactos?rev=56326&view=rev
Log:
[PORTCLS]
Fix broken "pointer arithmetics"

Modified:
    trunk/reactos/drivers/wdm/audio/backpln/portcls/port_wavertstream.cpp

Modified: trunk/reactos/drivers/wdm/audio/backpln/portcls/port_wavertstream.cpp
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/wdm/audio/backpln/p...
==============================================================================
--- trunk/reactos/drivers/wdm/audio/backpln/portcls/port_wavertstream.cpp [iso-8859-1] (original)
+++ trunk/reactos/drivers/wdm/audio/backpln/portcls/port_wavertstream.cpp [iso-8859-1] Tue Apr  3 14:43:52 2012
@@ -161,7 +161,7 @@
         return RtlConvertUlongToLargeInteger(0);
     }

-    Buffer = (PVOID)UlongToPtr(PtrToUlong(MmGetSystemAddressForMdlSafe(MemoryDescriptorList, LowPagePriority)) + Index * PAGE_SIZE);
+    Buffer = (PUCHAR)MmGetSystemAddressForMdlSafe(MemoryDescriptorList, LowPagePriority) + (Index * PAGE_SIZE);

Addr = MmGetPhysicalAddress(Buffer);
     Address->QuadPart = Addr.QuadPart;