Close file after os.Open()

test/e2e/e2e.go

@@ -95,6 +95,7 @@ func setupProviderConfig() error {
 			framework.Logf("Couldn't open cloud provider configuration %s: %#v",
 				cloudConfig.ConfigFile, err)
 		}
+		defer config.Close()
 		cloudConfig.Provider, err = azure.NewCloud(config)
 	}
 

test/e2e/kubectl.go

@@ -2013,6 +2013,7 @@ func newStreamingUpload(filePath string) (*io.PipeReader, *multipart.Writer, err
 	if err != nil {
 		return nil, nil, err
 	}
+	defer file.Close()
 
 	r, w := io.Pipe()
 

test/e2e_node/node_problem_detector_linux.go

@@ -372,6 +372,7 @@ func injectLog(file string, timestamp time.Time, log string, num int) error {
 	if err != nil {
 		return err
 	}
+	defer f.Close()
 	for i := 0; i < num; i++ {
 		_, err := f.WriteString(fmt.Sprintf("%s kernel: [0.000000] %s\n", timestamp.Format(time.Stamp), log))
 		if err != nil {