From 1c92c0ecbf02e06304c2882f89de74c183ce63fc Mon Sep 17 00:00:00 2001
From: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
Date: Tue, 29 Aug 2017 09:45:06 -0700
Subject: [PATCH] Fix panic in CloseIO when not Stdin was allocated for a
 process

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
---
 linux/shim/service.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/linux/shim/service.go b/linux/shim/service.go
index 76f502f4a..41f1fdffa 100644
--- a/linux/shim/service.go
+++ b/linux/shim/service.go
@@ -330,8 +330,10 @@ func (s *Service) CloseIO(ctx context.Context, r *shimapi.CloseIORequest) (*goog
 	if !ok {
 		return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "process does not exist %s", r.ID)
 	}
-	if err := p.Stdin().Close(); err != nil {
-		return nil, err
+	if stdin := p.Stdin(); stdin != nil {
+		if err := stdin.Close(); err != nil {
+			return nil, errors.Wrap(err, "close stdin")
+		}
 	}
 	return empty, nil
 }