From 844566837a5a2324729ca465271dbcad07e09347 Mon Sep 17 00:00:00 2001
From: Bill Nottingham <notting@redhat.com>
Date: Thu, 13 May 2010 17:24:11 -0400
Subject: Behave sanely if we're not passed a device at all. (#589521, #592108)

---
 sysconfig/network-scripts/network-functions | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sysconfig/network-scripts')

diff --git a/sysconfig/network-scripts/network-functions b/sysconfig/network-scripts/network-functions
index d5bcb2a2..777a1f8a 100644
--- a/sysconfig/network-scripts/network-functions
+++ b/sysconfig/network-scripts/network-functions
@@ -206,6 +206,8 @@ is_nm_active ()
 # Sets $alias to the device module if $? != 0
 is_available ()
 {
+    [ -z "$1" ] && return 1
+
     [ -d "/sys/class/net/$1" ] && return 0
 
     [ -n "$BONDING_OPTS" ] && install_bonding_driver $1
-- 
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