On Sat, 2017-08-05 at 11:44 +0300, Luca Coelho wrote: > + regd = get_wiphy_regdom(wiphy); > + if (regd) { > + const struct ieee80211_reg_rule *reg_rule = > + freq_reg_info_regd(MHZ_TO_KHZ(channel- > >center_freq), > + regd, MHZ_TO_KHZ(20)); > This could return an error, how can you be sure it doesn't? johannes