From d884ab13dc8e41b2bb72b0d53b294fa407498b64 Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@gmail.com>
Date: Tue, 13 Oct 2020 09:35:13 +0300
Subject: [PATCH] app/vmselect/prometheus: fix golangci-lint warning

---
 app/vmselect/prometheus/prometheus.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/vmselect/prometheus/prometheus.go b/app/vmselect/prometheus/prometheus.go
index 820dfe2af..38eb0837e 100644
--- a/app/vmselect/prometheus/prometheus.go
+++ b/app/vmselect/prometheus/prometheus.go
@@ -193,8 +193,10 @@ func ExportCSVHandler(startTime time.Time, at *auth.Token, w http.ResponseWriter
 		close(resultsCh)
 		doneCh <- err
 	}()
+	// Consume all the data from resultsCh.
 	for bb := range resultsCh {
-		bw.Write(bb.B)
+		// Do not check for error in bw.Write, since this error is checked inside netstorage.ExportBlocks above.
+		_, _ = bw.Write(bb.B)
 		quicktemplate.ReleaseByteBuffer(bb)
 	}
 	if err := bw.Flush(); err != nil {