From 9c6848a5940c67ade0d55f6331bcbe706b98b978 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Tue, 28 Feb 2023 12:44:17 +0900
Subject: [PATCH] mruby-io/io.c (check_file_descriptor): only check EBADF

---
 mrbgems/mruby-io/src/io.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mrbgems/mruby-io/src/io.c b/mrbgems/mruby-io/src/io.c
index ebe19930a..4e0897461 100644
--- a/mrbgems/mruby-io/src/io.c
+++ b/mrbgems/mruby-io/src/io.c
@@ -685,11 +685,8 @@ check_file_descriptor(mrb_state *mrb, mrb_int fd)
   }
 #endif /* _WIN32 */
 
-  if (fstat(fdi, &sb) != 0) {
-    goto badfd;
-  }
-
-  return;
+  if (fstat(fdi, &sb) == 0) return;
+  if (errno != EBADF) return;
 
 badfd:
   mrb_sys_fail(mrb, "bad file descriptor");