From 22f2dc2a875318870887315d9697b47911172977 Mon Sep 17 00:00:00 2001
From: Roman Arutyunyan <arut@nginx.com>
Date: Wed, 22 Sep 2021 14:02:56 +0300
Subject: [PATCH] QUIC: reset stream only once.

---
 src/event/quic/ngx_event_quic_streams.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/event/quic/ngx_event_quic_streams.c b/src/event/quic/ngx_event_quic_streams.c
index 7ad443eec..0bd487f83 100644
--- a/src/event/quic/ngx_event_quic_streams.c
+++ b/src/event/quic/ngx_event_quic_streams.c
@@ -221,6 +221,12 @@ ngx_quic_reset_stream(ngx_connection_t *c, ngx_uint_t err)
     ngx_quic_stream_t      *qs;
     ngx_quic_connection_t  *qc;
 
+    wev = c->write;
+
+    if (wev->error) {
+        return NGX_OK;
+    }
+
     qs = c->quic;
     pc = qs->parent;
     qc = ngx_quic_get_connection(pc);
@@ -238,7 +244,6 @@ ngx_quic_reset_stream(ngx_connection_t *c, ngx_uint_t err)
 
     ngx_quic_queue_frame(qc, frame);
 
-    wev = c->write;
     wev->error = 1;
     wev->ready = 1;