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luci-mod-freifunk: Fix "Undefined reference to net.iwdata"

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This PR fixes an Internal Server Error when requesting the Wireless Informations in luci-mod-freifunk. 
It checks an unindexed value "net.iwdata".

```
/usr/lib/lua/luci/dispatcher.lua:460: Failed to execute template dispatcher target for entry '/freifunk/status'. The called action terminated with an exception: /usr/lib/lua/luci/template.lua:97: Failed to execute template 'freifunk/public_status'. 

A runtime error occured: [string "/usr/lib/lua/luci/view/freifunk/public_stat..."]:116: attempt to index field 'iwdata' (a nil value) stack traceback: [C]: in function 'assert' /usr/lib/lua/luci/dispatcher.lua:460: in function 'dispatch' /usr/lib/lua/luci/dispatcher.lua:141: in function...
```

signed-off.by: Guido Lipke <lipkegu@gmail.com>
This commit is contained in:
Guido L 2016-06-10 01:55:33 +02:00 committed by GitHub
parent 0b8bfed7c2
commit 1e7466bbda
1 changed files with 1 additions and 1 deletions
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modules/luci-mod-freifunk/luasrc/view/freifunk/public_status.htm
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@ -264,7 +264,7 @@ end
netlist[#netlist+1] = net:ifname()
netdevs[net:ifname()] = dev:name()
if net.iwdata.device then
if net.iwinfo.signal and net.iwinfo.bssid then
local signal = net.iwinfo.signal or "N/A"
local noise = net.iwinfo.noise or "N/A"
local q = net.iwinfo.quality or "0"