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libs/sys: fix luci.sys.wifi.channels()
[project/luci.git]
/
libs
/
sys
/
luasrc
/
sys.lua
diff --git
a/libs/sys/luasrc/sys.lua
b/libs/sys/luasrc/sys.lua
index
817217b
..
1cf8b9f
100644
(file)
--- 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)
-- @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
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
end
if not cns or #cns == 0 then