Module Name: src
Committed By: christos
Date: Mon Feb 18 16:45:50 UTC 2013
Modified Files:
src/sys/netinet6: nd6_rtr.c
Log Message:
PR/47576: Takahiro HAYASHI: Avoid crash destroying tap0 after deleting
it's link-local address.
To generate a diff of this commit:
cvs rdiff -u -r1.85 -r1.86 src/sys/netinet6/nd6_rtr.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/netinet6/nd6_rtr.c
diff -u src/sys/netinet6/nd6_rtr.c:1.85 src/sys/netinet6/nd6_rtr.c:1.86
--- src/sys/netinet6/nd6_rtr.c:1.85 Mon Jan 28 12:57:34 2013
+++ src/sys/netinet6/nd6_rtr.c Mon Feb 18 11:45:50 2013
@@ -1,4 +1,4 @@
-/* $NetBSD: nd6_rtr.c,v 1.85 2013/01/28 17:57:34 joerg Exp $ */
+/* $NetBSD: nd6_rtr.c,v 1.86 2013/02/18 16:45:50 christos Exp $ */
/* $KAME: nd6_rtr.c,v 1.95 2001/02/07 08:09:47 itojun Exp $ */
/*
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nd6_rtr.c,v 1.85 2013/01/28 17:57:34 joerg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6_rtr.c,v 1.86 2013/02/18 16:45:50 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -1038,10 +1038,12 @@ prelist_remove(struct nd_prefix *pr)
free(pfr, M_IP6NDP);
}
- ext->nprefixes--;
- if (ext->nprefixes < 0) {
- log(LOG_WARNING, "prelist_remove: negative count on %s\n",
- pr->ndpr_ifp->if_xname);
+ if (ext) {
+ ext->nprefixes--;
+ if (ext->nprefixes < 0) {
+ log(LOG_WARNING, "prelist_remove: negative count on "
+ "%s\n", pr->ndpr_ifp->if_xname);
+ }
}
splx(s);
