[src/trunk]: src/sys/netinet6 Fix nd6_numroutes counting

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/41043eccfcc2
branches:  trunk
changeset: 339157:41043eccfcc2
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Tue Jun 30 06:42:06 2015 +0000

description:
Fix nd6_numroutes counting

nd6_numroutes is intended to be incremented when a route is added via RA
and decremented when a RA route is deleted. However, a decrement of a RA
route was skipped when there remained references to the RA route.

diffstat:

 sys/netinet6/nd6_rtr.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 9957a3feecfb -r 41043eccfcc2 sys/netinet6/nd6_rtr.c
--- a/sys/netinet6/nd6_rtr.c    Tue Jun 30 06:19:21 2015 +0000
+++ b/sys/netinet6/nd6_rtr.c    Tue Jun 30 06:42:06 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nd6_rtr.c,v 1.99 2015/05/02 14:28:30 roy Exp $ */
+/*     $NetBSD: nd6_rtr.c,v 1.100 2015/06/30 06:42:06 ozaki-r 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 1.99 2015/05/02 14:28:30 roy Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6_rtr.c,v 1.100 2015/06/30 06:42:06 ozaki-r Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -568,8 +568,8 @@
                         */
                        oldrt->rt_refcnt++;
                        rtfree(oldrt);
-                       nd6_numroutes--;
                }
+               nd6_numroutes--;
        }
 
        dr->installed = 0;