static int
vndclose(dev_t dev, int flags, int mode, struct lwp *l)
{
int unit = vndunit(dev);
struct vnd_softc *sc;
int error = 0, part;
#ifdef DEBUG
if (vnddebug & VDB_FOLLOW)
printf("vndclose(0x%"PRIx64", 0x%x, 0x%x, %p)\n", dev, flags, mode, l);
#endif
sc = device_lookup_private(&vnd_cd, unit);
if (sc == NULL)
return ENXIO;
if ((error = vndlock(sc)) != 0)
return error;
part = DISKPART(dev);
/* ...that much closer to allowing unconfiguration... */
switch (mode) {
case S_IFCHR:
sc->sc_dkdev.dk_copenmask &= ~(1 << part);
break;
case S_IFBLK:
sc->sc_dkdev.dk_bopenmask &= ~(1 << part);
break;
}
sc->sc_dkdev.dk_openmask =
sc->sc_dkdev.dk_copenmask | sc->sc_dkdev.dk_bopenmask;
vndunlock(sc);
if ((sc->sc_flags & VNF_INITED) == 0) {
if ((error = vnd_destroy(sc->sc_dev)) != 0) {
aprint_error_dev(sc->sc_dev,
"unable to detach instance\n");
return error;
}
}
return 0;
}
static int
vnd_lkm(struct lkm_table *lkmtp, int cmd)
{
int error = 0, i;
device_t dev;
if (cmd == LKM_E_LOAD) {
error = config_cfdriver_attach(&vnd_cd);
if (error) {
aprint_error("%s: unable to register cfdriver\n",
vnd_cd.cd_name);
return error;
}
vndattach(0);
} else if (cmd == LKM_E_UNLOAD) {
for (i = 0; i < vnd_cd.cd_ndevs; i++) {
dev = device_lookup(&vnd_cd, i);
if (dev != NULL &&
(error = vnd_destroy(dev)) != 0)
return 0;
}
if ((error = config_cfattach_detach(vnd_cd.cd_name,
&vnd_ca)) != 0) {
aprint_error("%s: unable to deregister cfattach\n",
vnd_cd.cd_name);
return error;
}
if ((error = config_cfdriver_detach(&vnd_cd)) != 0) {
aprint_error("%s: unable to deregister cfdriver\n",
vnd_cd.cd_name);
return error;
}
}
return (error);
}