C++ (Cpp) vnd_destroy Examples

Example #1

File: vnd.c Project: RyanLucchese/rumpkernel-netbsd-src

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;
}

Example #2

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);
}