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lnrpc: fix websocket proxy data race

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Was discovered in a race unit test in lightning node connect that uses
the websocket proxy to connect to the hashmail server on the client
side.
By not shadowing the err variable we end up reading and writing to the
same variable from two different goroutines, which causes the data race.
This commit is contained in:
Oliver Gugger 2022-03-29 18:15:43 +02:00
parent 6275a78c79
commit 40358d406d
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GPG Key ID: 8E4256593F177720
1 changed files with 2 additions and 2 deletions
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4
lnrpc/websocket_proxy.go
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@ -253,7 +253,7 @@ func (p *WebsocketProxy) upgradeToWebSocketProxy(w http.ResponseWriter,
payload = newPayload
}
_, err = requestForwarder.Write(payload)
_, err := requestForwarder.Write(payload)
if err != nil {
p.logger.Errorf("WS: error writing message "+
"to upstream http server: %v", err)
@ -338,7 +338,7 @@ func (p *WebsocketProxy) upgradeToWebSocketProxy(w http.ResponseWriter,
continue
}
err = conn.WriteMessage(
err := conn.WriteMessage(
websocket.TextMessage, responseForwarder.Bytes(),
)
if err != nil {