From d6f1671f9f9a87026a10864197c4a924f5b7e654 Mon Sep 17 00:00:00 2001
From: Weixie Cui <cuiweixie@gmail.com>
Date: Sun, 24 May 2026 20:43:45 +0800
Subject: [PATCH] encoding/pem: handle error from Close

---
 src/encoding/pem/pem.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/encoding/pem/pem.go b/src/encoding/pem/pem.go
index 6bf2b41ad0eb7f..0498a45c188d53 100644
--- a/src/encoding/pem/pem.go
+++ b/src/encoding/pem/pem.go
@@ -307,8 +307,12 @@ func Encode(out io.Writer, b *Block) error {
 	if _, err := b64.Write(b.Bytes); err != nil {
 		return err
 	}
-	b64.Close()
-	breaker.Close()
+	if err := b64.Close(); err != nil {
+		return err
+	}
+	if err := breaker.Close(); err != nil {
+		return err
+	}
 
 	if _, err := out.Write(pemEnd[1:]); err != nil {
 		return err