bsd/vfs/vfs_syscalls.c

429 	struct vnode *devvp = NULLVP;
674 			devvp = nd.ni_vp;
678 			if (devvp->v_type != VBLK) {
682 			if (major(devvp->v_rdev) >= nblkdev) {
695 				if ((error = vnode_authorize(devvp, NULL, accessmode, ctx)) != 0)
701 			if ( (error = vnode_ref(devvp)) )
709 			if ( (error = vfs_mountedon(devvp)) )
712 			if (vcount(devvp) > 1 && !(vfs_flags(mp) & MNT_ROOTFS)) {
716 			if ( (error = VNOP_FSYNC(devvp, MNT_WAIT, ctx)) ) {
720 			if ( (error = buf_invalidateblks(devvp, BUF_WRITE_DATA, 0, 0)) )
726 			    devvp,
731 			if ( (error = VNOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, ctx)) )
734 			mp->mnt_devvp = devvp;
735 			device_vnode = devvp;
961 	if (devpath && devvp)
962 	        vnode_put(devvp);
998 		vnode_rele(devvp);
1000 	if (devpath && devvp)
1001 	        vnode_put(devvp);
1300 	vnode_t devvp = NULLVP;
1433 			error = authorize_devpath_and_update_mntfromname(mp, devpath, &devvp, ctx);
1439 			vnode_put(devvp);
1772 	struct vnode *devvp = NULLVP;
1877 		devvp = mp->mnt_devvp;
1878 		vnode_getalways(devvp);
1879 		vnode_rele(devvp);
1880 		VNOP_CLOSE(devvp, mp->mnt_flag & MNT_RDONLY ? FREAD : FREAD|FWRITE,
1882 		vnode_clearmountedon(devvp);
1883 		vnode_put(devvp);