More miniobj checks

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@592 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_fetch.c

@@ -293,6 +293,9 @@ FetchHeaders(struct sess *sp)
 	i = WRK_Flush(w);
 	assert(i == 0);
 
+	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->wrk, WORKER_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->obj, OBJECT_MAGIC);
 	/*
 	 * XXX: It might be cheaper to avoid the event_engine and simply
 	 * XXX: read(2) the header
@@ -300,6 +303,9 @@ FetchHeaders(struct sess *sp)
 	http_RecvHead(vc->http, vc->fd, w->eb, NULL, NULL);
 	(void)event_base_loop(w->eb, 0);
 	assert(http_DissectResponse(vc->http, vc->fd) == 0);
+	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->wrk, WORKER_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->obj, OBJECT_MAGIC);
 	sp->vbc = vc;
 
 	sp->obj->entered = time(NULL);