--- xnu/xnu-344.49/iokit/Kernel/IODataQueue.cpp
+++ xnu/xnu-792.6.56/iokit/Kernel/IODataQueue.cpp
@@ -2,8 +2,6 @@
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
@@ -74,7 +72,7 @@
         return false;
     }
 
-    dataQueue = (IODataQueueMemory *)IOMallocAligned(round_page(size + DATA_QUEUE_MEMORY_HEADER_SIZE), PAGE_SIZE);
+    dataQueue = (IODataQueueMemory *)IOMallocAligned(round_page_32(size + DATA_QUEUE_MEMORY_HEADER_SIZE), PAGE_SIZE);
     if (dataQueue == 0) {
         return false;
     }
@@ -94,7 +92,7 @@
 void IODataQueue::free()
 {
     if (dataQueue) {
-        IOFreeAligned(dataQueue, round_page(dataQueue->queueSize + DATA_QUEUE_MEMORY_HEADER_SIZE));
+        IOFreeAligned(dataQueue, round_page_32(dataQueue->queueSize + DATA_QUEUE_MEMORY_HEADER_SIZE));
     }
 
     super::free();