From f361220450971fb3fc6894b9eaff65a89c6fa1c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B7=98=E5=B0=8F=E6=9D=B0?= <308512341@qq.com>
Date: Fri, 17 Dec 2021 11:31:37 +0800
Subject: [PATCH] Update connection.js

---
 lib/connection.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/connection.js b/lib/connection.js
index 8ba8f32b248..670a98426b9 100644
--- a/lib/connection.js
+++ b/lib/connection.js
@@ -1359,7 +1359,7 @@ Connection.prototype.setClient = function setClient(client) {
   if (!(client instanceof mongodb.MongoClient)) {
     throw new MongooseError('Must call `setClient()` with an instance of MongoClient');
   }
-  if (this.client != null || this.readyState !== STATES.disconnected) {
+  if (this.readyState !== STATES.disconnected) {
     throw new MongooseError('Cannot call `setClient()` on a connection that is already connected.');
   }
   if (client.topology == null) {