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Don't dereference sc->sc_setmtu if it's NULL (such as when it's not running)

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as discussed on current. (bde pointed out the cause of the problem)

Reported by: dev@fgate.flevel.co.uk
This commit is contained in:
Peter Wemm 1996-07-21 17:14:06 +00:00
parent 5a92765501
commit 9481c477f0
1 changed files with 3 additions and 2 deletions
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5
sys/net/if_ppp.c
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@ -69,7 +69,7 @@
* Paul Mackerras (paulus@cs.anu.edu.au).
*/
/* $Id: if_ppp.c,v 1.34 1996/06/10 23:07:33 gpalmer Exp $ */
/* $Id: if_ppp.c,v 1.35 1996/06/12 19:24:00 gpalmer Exp $ */
/* from if_ppp.c,v 1.5 1995/08/16 01:36:38 paulus Exp */
/* from if_sl.c,v 1.11 84/10/04 12:54:47 rick Exp */
@ -533,7 +533,8 @@ pppsioctl(ifp, cmd, data)
error = EINVAL;
else {
sc->sc_if.if_mtu = ifr->ifr_mtu;
(*sc->sc_setmtu)(sc);
if (sc->sc_setmtu)
(*sc->sc_setmtu)(sc);
}
break;