X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=libs%2Fsys%2Fluasrc%2Fsys.lua;h=1cf8b9f1865e4f5e2a0575f2f324a9aaeac82f9e;hp=817217b900978e8bb4a7de28a6df69b37a0b0cc5;hb=32e908a51c27b58a23d955a964c68fd1fa07d3ad;hpb=5841fce7c69677a582c4325ed0731d3a21382e2c

diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index 817217b90..1cf8b9f18 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -722,10 +722,14 @@ end
 -- @param iface	Wireless interface (optional)
 -- @return		Table of available channels
 function wifi.channels(iface)
-	local t = iwinfo.type(iface or "")
+	local stat, iwinfo = pcall(require, "iwinfo")
 	local cns
-	if iface and t and iwinfo[t] then
-		cns = iwinfo[t].freqlist(iface)
+
+	if stat then
+		local t = iwinfo.type(iface or "")
+		if iface and t and iwinfo[t] then
+			cns = iwinfo[t].freqlist(iface)
+		end
 	end
 
 	if not cns or #cns == 0 then