--- xnu/xnu-344.21.73/iokit/Kernel/IOTimerEventSource.cpp
+++ xnu/xnu-517/iokit/Kernel/IOTimerEventSource.cpp
@@ -106,7 +106,7 @@
     IOTimerEventSource *me = new IOTimerEventSource;
 
     if (me && !me->init(inOwner, inAction)) {
-        me->free();
+        me->release();
         return 0;
     }