WEXT's "struct iw_freq" can also be used to handle a channel. This patch now
uses cfg80211_wext_freq() instead of hand-converting the frequency. That
allows user-space to specify channels as well, like with SIOCSIWFREQ.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
                                int k;
                                int wiphy_freq = wiphy->bands[band]->channels[j].center_freq;
                                for (k = 0; k < wreq->num_channels; k++) {
-                                       int wext_freq = wreq->channel_list[k].m / 100000;
+                                       int wext_freq = cfg80211_wext_freq(wiphy, &wreq->channel_list[k]);
                                        if (wext_freq == wiphy_freq)
                                                goto wext_freq_found;
                                }