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[src/trunk]: src/sys/netinet6 Decrease the reference count before freeing, so...



details:   https://anonhg.NetBSD.org/src/rev/28d215866be7
branches:  trunk
changeset: 962623:28d215866be7
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Jul 26 10:18:42 2019 +0000

description:
Decrease the reference count before freeing, so that the entries actually
get free'd. (Ryota Ozaki)

diffstat:

 sys/netinet6/nd6.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (42 lines):

diff -r 5ca983ca7c14 -r 28d215866be7 sys/netinet6/nd6.c
--- a/sys/netinet6/nd6.c        Fri Jul 26 10:03:40 2019 +0000
+++ b/sys/netinet6/nd6.c        Fri Jul 26 10:18:42 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nd6.c,v 1.255 2019/06/28 06:45:16 ozaki-r Exp $        */
+/*     $NetBSD: nd6.c,v 1.256 2019/07/26 10:18:42 christos Exp $       */
 /*     $KAME: nd6.c,v 1.279 2002/06/08 11:16:51 itojun Exp $   */
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nd6.c,v 1.255 2019/06/28 06:45:16 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6.c,v 1.256 2019/07/26 10:18:42 christos Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_net_mpsafe.h"
@@ -497,6 +497,7 @@
                                ln->ln_hold = m0;
                                clear_llinfo_pqueue(ln);
                        }
+                       LLE_REMREF(ln);
                        nd6_free(ln, 0);
                        ln = NULL;
                        if (m != NULL) {
@@ -516,6 +517,7 @@
        case ND6_LLINFO_STALE:
                /* Garbage Collection(RFC 2461 5.3) */
                if (!ND6_LLINFO_PERMANENT(ln)) {
+                       LLE_REMREF(ln);
                        nd6_free(ln, 1);
                        ln = NULL;
                }
@@ -539,6 +541,7 @@
                        daddr6 = &ln->r_l3addr.addr6;
                        send_ns = true;
                } else {
+                       LLE_REMREF(ln);
                        nd6_free(ln, 0);
                        ln = NULL;
                }



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