From 64feded8afd7280f533e09138efa31b6772e34ce Mon Sep 17 00:00:00 2001
From: guoguangwu <guoguangwug@gmail.com>
Date: Thu, 27 Feb 2025 05:56:52 +0000
Subject: [PATCH] cmd/covdata: close output meta-data file

Change-Id: Idd2a324eb51ffa3f40cb3df03a82a1d6d882295a
GitHub-Last-Rev: 62e22b309d9f4b31b1fb426e4fdbabd04fcc8371
GitHub-Pull-Request: golang/go#71993
Reviewed-on: https://go-review.googlesource.com/c/go/+/653140
Reviewed-by: Than McIntosh <thanm@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
---
 src/cmd/covdata/metamerge.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/cmd/covdata/metamerge.go b/src/cmd/covdata/metamerge.go
index b3c62460e4..5193593456 100644
--- a/src/cmd/covdata/metamerge.go
+++ b/src/cmd/covdata/metamerge.go
@@ -241,6 +241,12 @@ func (mm *metaMerge) emitMeta(outdir string, pcombine bool) [16]byte {
 		fatal("unable to open output meta-data file %s: %v", fpath, err)
 	}
 
+	defer func() {
+		if err := mf.Close(); err != nil {
+			fatal("error closing output meta-data file %s: %v", fpath, err)
+		}
+	}()
+
 	// Encode and write.
 	mfw := encodemeta.NewCoverageMetaFileWriter(fpath, mf)
 	err = mfw.Write(finalHash, blobs, mm.Mode(), mm.Granularity())
-- 
2.50.0