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avoid duplicated rtfree() on default router list change (could cause panic).

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sync with kame 1.46 -> 1.47.
This commit is contained in:
itojun 2000-08-11 12:27:07 +00:00
parent 9ee7e19c71
commit a95e5daca9
1 changed files with 9 additions and 6 deletions
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15
sys/netinet6/nd6_rtr.c
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@ -1,5 +1,5 @@
/* $FreeBSD$ */
/* $KAME: nd6_rtr.c,v 1.43 2000/07/02 23:19:59 itojun Exp $ */
/* $KAME: nd6_rtr.c,v 1.47 2000/08/08 08:58:42 jinmei Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -546,12 +546,15 @@ defrouter_delreq(dr, dofree)
(struct sockaddr *)&mask,
RTF_GATEWAY, &oldrt);
if (oldrt) {
#ifdef ND6_USE_RTSOCK
defrouter_msg(RTM_DELETE, oldrt);
#endif
if (oldrt->rt_refcnt <= 0)
oldrt->rt_refcnt++; /* XXX */
rtfree(oldrt);
if (oldrt->rt_refcnt <= 0) {
/*
* XXX: borrowed from the RTM_DELETE case of
* rtrequest().
*/
oldrt->rt_refcnt++;
rtfree(oldrt);
}
}
if (dofree) /* XXX: necessary? */