fc_regspec
pci_unmap_phys(&ip->fc_map_handle, ip->fc_regspec);
kmem_free(ip->fc_regspec, sizeof (pci_regspec_t));
ip->fc_regspec = ph; /* cache a copy of the reg spec */
pci_unmap_phys(&ip->fc_map_handle, ip->fc_regspec);
kmem_free(ip->fc_regspec, sizeof (pci_regspec_t));