From 2f7fdfc1a45931753d77a17b1b67c6725a5f6784 Mon Sep 17 00:00:00 2001
From: Quentin Armitage <quentin@armitage.org.uk>
Date: Wed, 14 Oct 2020 16:17:08 +0100
Subject: [PATCH 380/691] vrrp: fix checking if kernel netlink socket is open

0 is a valid value for a file descriptor.

Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
---
 keepalived/core/keepalived_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/keepalived/core/keepalived_netlink.c b/keepalived/core/keepalived_netlink.c
index 6ac26dc..3169013 100644
--- a/keepalived/core/keepalived_netlink.c
+++ b/keepalived/core/keepalived_netlink.c
@@ -2314,7 +2314,7 @@ kernel_netlink(thread_ref_t thread)
 void
 kernel_netlink_poll(void)
 {
-	if (!nl_kernel.fd)
+	if (nl_kernel.fd < 0)
 		return;
 
 	netlink_parse_info(netlink_broadcast_filter, &nl_kernel, NULL, true);
-- 
1.8.3.1