diff options
| author | Bruce Evans <bde@FreeBSD.org> | 1994-11-27 15:29:57 +0000 |
|---|---|---|
| committer | Bruce Evans <bde@FreeBSD.org> | 1994-11-27 15:29:57 +0000 |
| commit | 7b9754ed1f460f51c9aebe901f427423ce7ad45d (patch) | |
| tree | ed8c0c077cc37c093162ee04de0980219503e782 /sys/net/if_ppp.c | |
| parent | 0e01a1ca151bb2466bf369b8ee13b62eaf221482 (diff) | |
| download | src-7b9754ed1f460f51c9aebe901f427423ce7ad45d.tar.gz src-7b9754ed1f460f51c9aebe901f427423ce7ad45d.zip | |
Fix previous change: don't attempt to reserve cblocks if the tty is null.
Notes
Notes:
svn path=/head/; revision=4838
Diffstat (limited to 'sys/net/if_ppp.c')
| -rw-r--r-- | sys/net/if_ppp.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sys/net/if_ppp.c b/sys/net/if_ppp.c index 826bcc60a4a8..3f4ca74c576a 100644 --- a/sys/net/if_ppp.c +++ b/sys/net/if_ppp.c @@ -69,7 +69,7 @@ * Paul Mackerras (paulus@cs.anu.edu.au). */ -/* $Id: if_ppp.c,v 1.7 1994/11/23 08:29:44 ugen Exp $ */ +/* $Id: if_ppp.c,v 1.8 1994/11/26 19:23:59 bde Exp $ */ /* from if_sl.c,v 1.11 84/10/04 12:54:47 rick Exp */ #include "ppp.h" @@ -1506,11 +1506,14 @@ pppioctl(ifp, cmd, data) if (error = suser(p->p_ucred, &p->p_acflag)) return (error); if (ifr->ifr_mtu > PPP_MAXMTU) - error = EINVAL; + error = EINVAL; else { - sc->sc_if.if_mtu = ifr->ifr_mtu; - clist_alloc_cblocks(&((struct tty *) sc->sc_devp)->t_outq, - sc->sc_if.if_mtu + PPP_HIWAT, + struct tty *tp; + + sc->sc_if.if_mtu = ifr->ifr_mtu; + tp = (struct tty *) sc->sc_devp; + if (tp != NULL) + clist_alloc_cblocks(&tp->t_outq, sc->sc_if.if_mtu + PPP_HIWAT, sc->sc_if.if_mtu + PPP_HIWAT); } break; |