From b4181c6e5777924e9bc853c45eb72fe1533db8df Mon Sep 17 00:00:00 2001
From: Alessandro Ros <aler9.dev@gmail.com>
Date: Wed, 25 Dec 2024 15:54:40 +0100
Subject: [PATCH] server: fix panic during session closure (#671)

---
 async_processor.go | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/async_processor.go b/async_processor.go
index 41da1553..660b03bc 100644
--- a/async_processor.go
+++ b/async_processor.go
@@ -27,12 +27,11 @@ func (w *asyncProcessor) start() {
 }
 
 func (w *asyncProcessor) stop() {
-	if !w.running {
-		panic("should not happen")
+	if w.running {
+		w.buffer.Close()
+		<-w.chError
+		w.running = false
 	}
-	w.buffer.Close()
-	<-w.chError
-	w.running = false
 }
 
 func (w *asyncProcessor) run() {