From eae72af6b36130dc016b5e22a8c787ef00884698 Mon Sep 17 00:00:00 2001
From: Andy Pan <panjf2000@gmail.com>
Date: Wed, 16 Nov 2022 14:31:17 +0800
Subject: [PATCH] Wait for the response of pipelineWork in background and
 return it to pool

---
 client.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/client.go b/client.go
index e4450919fe..4fad6edcab 100644
--- a/client.go
+++ b/client.go
@@ -2411,6 +2411,11 @@ func (c *pipelineConnClient) DoDeadline(req *Request, resp *Response, deadline t
 		releasePipelineWork(&c.workPool, w)
 	case <-w.t.C:
 		err = ErrTimeout
+		go func() {
+			// Wait for the response in background.
+			<-w.done
+			releasePipelineWork(&c.workPool, w)
+		}()
 	}
 
 	return err