From f16f69a23f6a92fa1457dd64cfc8b3fd04aea8ba Mon Sep 17 00:00:00 2001
From: Chai Feng <chaifeng@chaifeng.com>
Date: Sat, 6 Oct 2018 06:43:06 +0800
Subject: [PATCH] check if port list is empty

---
 ufw-docker | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ufw-docker b/ufw-docker
index bfb4c44..2d96dc3 100755
--- a/ufw-docker
+++ b/ufw-docker
@@ -58,7 +58,7 @@ function ufw-docker--allow() {
         return
     fi
 
-    if [[ -z "${PORT_PROTO_LIST[@]:-}" ]]; then
+    if [[ -z "${PORT_PROTO_LIST:-}" ]]; then
         err "\"$INSTANCE_NAME\" doesn't have any published ports."
         return 1
     fi