Add NULL check to wireless functions.
The old interface_translate_type_to_real function used previously would return OPTXif it was passed "OPTX" and OPTX existed but was unassigned, whereas get_real_interface returns NULL, so now wecheck for NULL.
Added by Marcus Brown over 14 years ago
Add NULL check to wireless functions.
The old interface_translate_type_to_real function used previously would return OPTX
if it was passed "OPTX" and OPTX existed but was unassigned, whereas get_real_interface returns NULL, so now we
check for NULL.