- Check "csc->cc_ih != NULL" before cardbus_intr_disestablish()
in com_cardbus_detach().
This fixed panic when the card removed.
The card is a "Xircom RealPort Cardbus Ethernet 10/100+Modem 56".
Reported & Tested by Peter Postma <peter.postma@chello.nl>
on current-users.