From e0fbca02d4c22c92a69fb4f2e8cd4c37ef89979b Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Mon, 28 Feb 2022 13:24:25 +0000
Subject: [PATCH] compress: fix memory leak - fixes #6013

Before this change we forgot to close the compressor when checking to
see if an object was compressible.
---
 backend/compress/compress.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/backend/compress/compress.go b/backend/compress/compress.go
index fbd99ac9f..db90dca25 100644
--- a/backend/compress/compress.go
+++ b/backend/compress/compress.go
@@ -401,6 +401,10 @@ func isCompressible(r io.Reader) (bool, error) {
 	if err != nil {
 		return false, err
 	}
+	err = w.Close()
+	if err != nil {
+		return false, err
+	}
 	ratio := float64(n) / float64(b.Len())
 	return ratio > minCompressionRatio, nil
 }