From bf07202e16f3b058e78d8afe74878cd828125e8a Mon Sep 17 00:00:00 2001
From: Ken Brown <kbrown@cornell.edu>
Date: Tue, 19 May 2020 10:25:43 -0400
Subject: [PATCH] Cygwin: FIFO: add missing unlock

There was a missing call to reader_opening_unlock on one of the error
exits in fhandler_fifo::open.
---
 winsup/cygwin/fhandler_fifo.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc
index ab4b93942..3d34cdfab 100644
--- a/winsup/cygwin/fhandler_fifo.cc
+++ b/winsup/cygwin/fhandler_fifo.cc
@@ -1020,6 +1020,7 @@ err_close_reader:
   saved_errno = get_errno ();
   close ();
   set_errno (saved_errno);
+  reader_opening_unlock ();
   return 0;
 err_close_cancel_evt:
   NtClose (cancel_evt);