diff -r 2d65c2f76d7b -r 4a8fed1c0ef6 kernel/eka/drivers/usbc/d_usbc.cpp
--- a/kernel/eka/drivers/usbc/d_usbc.cpp	Tue Feb 02 01:24:03 2010 +0200
+++ b/kernel/eka/drivers/usbc/d_usbc.cpp	Sat Feb 20 00:10:51 2010 +0200
@@ -153,6 +153,7 @@
 	__KTRACE_OPT(KUSB, Kern::Printf("DLddUsbcChannel::~DLddUsbcChannel()"));
 	if (iController)
 		{
+		iController->DeRegisterClient(this);
 		iStatusCallbackInfo.Cancel();
 		iEndpointStatusCallbackInfo.Cancel();
         iOtgFeatureCallbackInfo.Cancel();
@@ -164,7 +165,6 @@
 			iController->ReleaseDeviceControl(this);
 			iOwnsDeviceControl = EFalse;
 			}
-		iController->DeRegisterClient(this);
 		DestroyEp0();
 		delete iStatusFifo;
 		Kern::DestroyClientRequest(iStatusChangeReq);