fix typo in chan sip that causes segV

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3931 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 071c4a8..d7979ea 100755 (executable)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -8786,7 +8786,7 @@ static void delete_users(void)
        for (user=userl.users;user;) {
                userlast = user;
                user=user->next;
-               destroy_user(user);
+               destroy_user(userlast);
        }
        userl.users=NULL;
        ast_mutex_unlock(&userl.lock);