From f28e991c0c4e97bbddd6f14ca2f9488cefd34762 Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 15 Aug 2017 21:16:47 +0000
Subject: [PATCH] Print a useful message when bringing up a port that has not
 been created, yet

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
 src/functions/functions.ports | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/functions/functions.ports b/src/functions/functions.ports
index af3f5f06..f7ea1a0b 100644
--- a/src/functions/functions.ports
+++ b/src/functions/functions.ports
@@ -238,7 +238,17 @@ port_edit() {
 }
 
 port_up() {
-	port_cmd up $@
+	assert [ $# -eq 1 ]
+
+	local port="${1}"
+
+	# Check if the port exists
+	if ! device_exists "${port}"; then
+		log ERROR "Could not bring up port ${port} which has not been created"
+		return ${EXIT_ERROR}
+	fi
+
+	port_cmd up "${port}"
 }
 
 port_down() {
-- 
2.47.3