Removing WiFi dongle while in screen under Network Adapter Selection causes crash on screen exit

[prl]

Removing WiFi dongle while in screen under Network Adapter Selection causes crash when Network Adapter Selection screen is returned to.

The code that fills the list in the Network Adapter Selection seems to assume that it remains unchanged and then a crash is caused when lower-level code tries to access files in /sys/class/net/wlan0, which now does not exist.

Crash log attached.

Reproduction steps

Deconfigure and remove WiFi dongle if configured.

Return to live TV if not in live TV.

Connect WiFi dongle, but do not configure it.

Navigate to MENU>Setup>Network>Network Adapter Selection. Then highlight either wired Ethernet or WiFi, and press OK.

Don't configure the WiFi dongle, just remove it.

Press EXIT to return to the Network Adapter Selection, crash.

[prl]

A file was uploaded. reference to attachment wifiRemoval_enigma2_crash_1415231629.log (T3 crash log file)