Fix the same issue as in the kqueue acceptor: By the time we get

here the filedescriptor may already be closed, so accept EBADF.

Reported by:	Xing Li <xing@litespeedtech.com>


git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@918 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_acceptor_epoll.c

@@ -37,7 +37,10 @@ vca_add(int fd, void *data)
 static void
 vca_del(int fd)
 {
-	AZ(epoll_ctl(epfd, EPOLL_CTL_DEL, fd, NULL));
+	int i;
+
+	i = epoll_ctl(epfd, EPOLL_CTL_DEL, fd, NULL);
+	assert(i == 0 || errno == EBADF);
 }
 
 static void