[src/trunk]: src/sys/netinet6 Remove unnecessary NULL check

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

details:   https://anonhg.NetBSD.org/src/rev/1add76cf7079
branches:  trunk
changeset: 352065:1add76cf7079
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Tue Mar 14 04:21:38 2017 +0000

description:
Remove unnecessary NULL check

diffstat:

 sys/netinet6/nd6_rtr.c |  9 ++-------
 1 files changed, 2 insertions(+), 7 deletions(-)

diffs (30 lines):

diff -r 7491bfea8315 -r 1add76cf7079 sys/netinet6/nd6_rtr.c
--- a/sys/netinet6/nd6_rtr.c    Tue Mar 14 04:07:43 2017 +0000
+++ b/sys/netinet6/nd6_rtr.c    Tue Mar 14 04:21:38 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nd6_rtr.c,v 1.134 2017/03/03 06:27:20 msaitoh Exp $    */
+/*     $NetBSD: nd6_rtr.c,v 1.135 2017/03/14 04:21:38 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 1.134 2017/03/03 06:27:20 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6_rtr.c,v 1.135 2017/03/14 04:21:38 ozaki-r Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_net_mpsafe.h"
@@ -581,11 +581,6 @@
        } def, mask, gw;
        int error;
 
-#ifdef DIAGNOSTIC
-       if (dr == NULL)
-               panic("dr == NULL in defrouter_delreq");
-#endif
-
        memset(&def, 0, sizeof(def));
        memset(&mask, 0, sizeof(mask));
        memset(&gw, 0, sizeof(gw));     /* for safety */