From dca084e703ce54c500e4af7ddc1e0c2b65d4d403 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Wed, 10 Jun 2015 15:39:23 +0100
Subject: [PATCH] Don't leak dotfd if fchdir fails. From ettl dot martin78 at
 gmail dot com.

---
 compat/openat.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/compat/openat.c b/compat/openat.c
index 5cd9e551..6b04eedc 100644
--- a/compat/openat.c
+++ b/compat/openat.c
@@ -40,8 +40,12 @@ openat(int fd, const char *path, int flags, ...)
 		dotfd = open(".", O_RDONLY);
 		if (dotfd == -1)
 			return (-1);
-		if (fchdir(fd) != 0)
+		if (fchdir(fd) != 0) {
+			saved_errno = errno;
+			close(dotfd);
+			errno = saved_errno;
 			return (-1);
+		}
 	}
 
 	retval = open(path, flags, mode);