From 2a0ad57b211ad87709e5886f319a450c4f9db3fd Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Wed, 16 May 2018 11:59:09 +0200
Subject: [PATCH] s3:winbind: Add sanity check when closing fd

Found by Coverity.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
---
 source3/winbindd/winbindd_cm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source3/winbindd/winbindd_cm.c b/source3/winbindd/winbindd_cm.c
index 9c2773d5d67..52b4c2c689f 100644
--- a/source3/winbindd/winbindd_cm.c
+++ b/source3/winbindd/winbindd_cm.c
@@ -1738,8 +1738,10 @@ static bool find_new_dc(TALLOC_CTX *mem_ctx,
 	TALLOC_FREE(addrs);
 	num_addrs = 0;
 
-	close(*fd);
-	*fd = -1;
+	if (*fd != -1) {
+		close(*fd);
+		*fd = -1;
+	}
 
 	goto again;
 }
-- 
2.34.1