[src/trunk]: src/sys/net fix a potential bug of gif(4) check for tunnel dupli...

[knakahara <knakahara%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/28a3dfb1a7a8
branches:  trunk
changeset: 456082:28a3dfb1a7a8
user:      knakahara <knakahara%NetBSD.org@localhost>
date:      Mon Apr 22 08:09:59 2019 +0000

description:
fix a potential bug of gif(4) check for tunnel duplicate.

This problem has not actualized thanks to check for duplicate
in encap_attach().

diffstat:

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

diffs (27 lines):

diff -r 2969ec07058b -r 28a3dfb1a7a8 sys/net/if_gif.c
--- a/sys/net/if_gif.c  Mon Apr 22 08:05:00 2019 +0000
+++ b/sys/net/if_gif.c  Mon Apr 22 08:09:59 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_gif.c,v 1.145 2018/11/12 03:37:33 knakahara Exp $   */
+/*     $NetBSD: if_gif.c,v 1.146 2019/04/22 08:09:59 knakahara Exp $   */
 /*     $KAME: if_gif.c,v 1.76 2001/08/20 02:01:02 kjc Exp $    */
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_gif.c,v 1.145 2018/11/12 03:37:33 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_gif.c,v 1.146 2019/04/22 08:09:59 knakahara Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1029,7 +1029,7 @@
 
                if (sc2 == sc)
                        continue;
-               var2 = gif_getref_variant(sc, &psref);
+               var2 = gif_getref_variant(sc2, &psref);
                if (!var2->gv_pdst || !var2->gv_psrc) {
                        gif_putref_variant(var2, &psref);
                        continue;