typo

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1071 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_pool.c

@@ -196,7 +196,7 @@ wrk_thread(void *priv)
 
 		/* Process overflow requests, if any */
 		w->wrq = TAILQ_FIRST(&overflow);
-		if (w != NULL) {
+		if (w->wrq != NULL) {
 			LOCK(&tmtx);
 			w->wrq = TAILQ_FIRST(&overflow);
 			if (w->wrq != NULL) {