From d3b32aac865d661fdce76ecf61763692e1cc82c6 Mon Sep 17 00:00:00 2001
From: huangzhhui <huangzhwork@gmail.com>
Date: Tue, 15 Jun 2021 14:51:18 +0800
Subject: [PATCH] Fixed variable $channel might not be defined.

---
 src/utils/src/Channel/Caller.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/src/Channel/Caller.php b/src/utils/src/Channel/Caller.php
index d7626997d..7184b55b8 100644
--- a/src/utils/src/Channel/Caller.php
+++ b/src/utils/src/Channel/Caller.php
@@ -43,8 +43,8 @@ class Caller
     public function call(Closure $closure)
     {
         $release = true;
+        $channel = $this->channel;
         try {
-            $channel = $this->channel;
             $instance = $channel->pop($this->waitTimeout);
             if ($instance === false) {
                 if ($channel->isClosing()) {