16c16
< * $FreeBSD: head/sys/net/if_tun.c 139823 2005-01-07 01:45:51Z imp $
---
> * $FreeBSD: head/sys/net/if_tun.c 144389 2005-03-31 12:19:44Z phk $
158c158,159
< if (*dev != NULL)
---
> if (*dev != NULL) {
> dev_ref(*dev);
159a161
> }