Fix registration bug with new astobj (bug #3184)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4584 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index b9a1b3b..00aca60 100755 (executable)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -5029,7 +5029,8 @@ static int register_verify(struct sip_pvt *p, struct sockaddr_in *sin, struct si
        build_contact(p);
        peer = find_peer(name, NULL);
        if (!(peer && ast_apply_ha(peer->ha, sin))) {
-               ASTOBJ_UNREF(peer,sip_destroy_peer);
+               if (peer)
+                       ASTOBJ_UNREF(peer,sip_destroy_peer);
        }
        if (peer) {
                        if (!ast_test_flag(peer, SIP_DYNAMIC)) {