From 8879c55bb39b31a03de5d798a436d73b30a011d6 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Thu, 28 Apr 2011 10:27:00 +0000
Subject: [PATCH] applications/luci-vnstat: fix crash if dbdir is defined but
 not existing yet

---
 applications/luci-vnstat/luasrc/model/cbi/vnstat.lua | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/applications/luci-vnstat/luasrc/model/cbi/vnstat.lua b/applications/luci-vnstat/luasrc/model/cbi/vnstat.lua
index 9161ec6a6..5c5e8f7aa 100644
--- a/applications/luci-vnstat/luasrc/model/cbi/vnstat.lua
+++ b/applications/luci-vnstat/luasrc/model/cbi/vnstat.lua
@@ -37,10 +37,12 @@ local ifaces = { }
 local enabled = { }
 local iface
 
-for iface in fs.dir(dbdir) do
-	if iface:sub(1,1) ~= '.' then
-		ifaces[iface] = iface
-		enabled[iface] = iface
+if fs.access(dbdir) then
+	for iface in fs.dir(dbdir) do
+		if iface:sub(1,1) ~= '.' then
+			ifaces[iface] = iface
+			enabled[iface] = iface
+		end
 	end
 end
 
-- 
2.11.0