1 files changed, 41 insertions, 0 deletions

diff --git a/net/wireless/core.c b/net/wireless/core.c
index cfc5fc5f9e75..80afacdae46c 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -232,6 +232,47 @@ int wiphy_register(struct wiphy *wiphy)
 {
         struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
         int res;
+        enum ieee80211_band band;
+        struct ieee80211_supported_band *sband;
+        bool have_band = false;
+        int i;
+
+        /* sanity check supported bands/channels */
+        for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+                sband = wiphy->bands[band];
+                if (!sband)
+                        continue;
+
+                sband->band = band;
+
+                if (!sband->n_channels || !sband->n_bitrates) {
+                        WARN_ON(1);
+                        return -EINVAL;
+                }
+
+                for (i = 0; i < sband->n_channels; i++) {
+                        sband->channels[i].orig_flags =
+                                sband->channels[i].flags;
+                        sband->channels[i].orig_mag =
+                                sband->channels[i].max_antenna_gain;
+                        sband->channels[i].orig_mpwr =
+                                sband->channels[i].max_power;
+                        sband->channels[i].band = band;
+                }
+
+                have_band = true;
+        }
+
+        if (!have_band) {
+                WARN_ON(1);
+                return -EINVAL;
+        }
+
+        /* check and set up bitrates */
+        ieee80211_set_bitrate_flags(wiphy);
+
+        /* set up regulatory info */
+        wiphy_update_regulatory(wiphy);
 
         mutex_lock(&cfg80211_drv_mutex);