From b87ad95fec3eb82c2b2d08466cd985f4fcae1e23 Mon Sep 17 00:00:00 2001
From: Shiming Zhang <wzshiming@foxmail.com>
Date: Thu, 3 Jun 2021 15:36:20 +0800
Subject: [PATCH] Close the used file

---
 staging/src/k8s.io/kubectl/pkg/rawhttp/raw.go | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/staging/src/k8s.io/kubectl/pkg/rawhttp/raw.go b/staging/src/k8s.io/kubectl/pkg/rawhttp/raw.go
index 10bc49d9404..60fd0359f1e 100644
--- a/staging/src/k8s.io/kubectl/pkg/rawhttp/raw.go
+++ b/staging/src/k8s.io/kubectl/pkg/rawhttp/raw.go
@@ -21,7 +21,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 
 	"k8s.io/cli-runtime/pkg/genericclioptions"
@@ -50,20 +49,21 @@ func RawDelete(restClient *rest.RESTClient, streams genericclioptions.IOStreams,
 
 // raw makes a simple HTTP request to the provided path on the server using the default credentials.
 func raw(restClient *rest.RESTClient, streams genericclioptions.IOStreams, url, filename, requestType string) error {
-	var data io.ReadCloser
+	var data io.Reader
 	switch {
 	case len(filename) == 0:
-		data = ioutil.NopCloser(bytes.NewBuffer([]byte{}))
+		data = bytes.NewBuffer([]byte{})
 
 	case filename == "-":
-		data = ioutil.NopCloser(streams.In)
+		data = streams.In
 
 	default:
-		var err error
-		data, err = os.Open(filename)
+		f, err := os.Open(filename)
 		if err != nil {
 			return err
 		}
+		defer f.Close()
+		data = f
 	}
 
 	var request *rest.Request