From 38f756e73afaedae43d5d53e4731cf9ea45b8e5d Mon Sep 17 00:00:00 2001
From: Sebastiaan van Stijn <github@gone.nl>
Date: Thu, 29 Feb 2024 19:52:14 +0800
Subject: [PATCH] cio: FIFOSet.Close() check if FIFOSet is nill to prevent NPE

Reference:https://github.com/containerd/containerd/commit/6a2d3990d1db676935ea7d1d2f8e2b952998b5d9
---
 cio/io.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cio/io.go b/cio/io.go
index bda04d2..dcf40aa 100644
--- a/cio/io.go
+++ b/cio/io.go
@@ -77,7 +77,7 @@ type FIFOSet struct {
 
 // Close the FIFOSet
 func (f *FIFOSet) Close() error {
-	if f.close != nil {
+	if f != nil && f.close != nil {
 		return f.close()
 	}
 	return nil
-- 
2.33.0

