--- a/src/devices/wifi/qap-wifi-mac.cc	Thu Jul 16 13:51:12 2009 +0400
+++ b/src/devices/wifi/qap-wifi-mac.cc	Thu Jul 16 12:31:26 2009 +0200
@@ -119,10 +119,11 @@
 QapWifiMac::DoDispose ()
 {
   delete m_rxMiddle;
+  delete m_txMiddle;
+  delete m_dcfManager;
+  m_low->Dispose ();
   m_rxMiddle = 0;
-  delete m_txMiddle;
   m_txMiddle = 0;
-  delete m_dcfManager;
   m_dcfManager = 0;
   m_low = 0;
   m_phy = 0;