From 79a57d49cb670c56dbc279d022bf4845b960566e Mon Sep 17 00:00:00 2001
From: rjl493456442 <garyrong0905@gmail.com>
Date: Fri, 5 May 2023 13:55:32 +0800
Subject: [PATCH] eth/downloader: fix error aggregator (#27217)

---
 eth/downloader/downloader.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index e56321e58..9a805396c 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -663,8 +663,11 @@ func (d *Downloader) spawnSync(fetchers []func() error) error {
 			// it has processed the queue.
 			d.queue.Close()
 		}
-		if err = <-errc; err != nil && err != errCanceled {
-			break
+		if got := <-errc; got != nil {
+			err = got
+			if got != errCanceled {
+				break // receive a meaningful error, bubble it up
+			}
 		}
 	}
 	d.queue.Close()