From 5767e9baf6b2d88541e45d84c164a2e0b5085a61 Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Mon, 29 May 2017 14:55:25 +0200
Subject: [PATCH] confile: config_ttydir()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---
 src/lxc/confile.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index 8787db062..3acf62a93 100644
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -1386,6 +1386,9 @@ static int config_ttydir(const char *key, const char *value,
 static int config_kmsg(const char *key, const char *value,
 			  struct lxc_conf *lxc_conf)
 {
+	if (config_value_empty(value))
+		return 0;
+
 	if (lxc_safe_uint(value, &lxc_conf->kmsg) < 0)
 		return -1;