Patch by Alberto Milone for Ubuntu, Mon, 12 May 2014, grabbed off launchpad.

--- a/src/wl/sys/wl_cfg80211_hybrid.c
+++ b/src/wl/sys/wl_cfg80211_hybrid.c
@@ -1841,7 +1841,26 @@ wl_notify_connect_status(struct wl_cfg80211_priv *wl, struct net_device *ndev,
			wl_get_assoc_ies(wl);
			memcpy(&wl->bssid, &e->addr, ETHER_ADDR_LEN);
			wl_update_bss_info(wl);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)
+			{
+				struct wl_bss_info *bi;
+				u16 bss_info_channel;
+				struct ieee80211_channel *channel;
+				u32 freq;
+
+				bi = (struct wl_bss_info *)(wl->extra_buf + 4);
+				bss_info_channel = bi->ctl_ch ? bi->ctl_ch : CHSPEC_CHANNEL(bi->chanspec);
+
+				freq = ieee80211_channel_to_frequency(bss_info_channel,
+					(bss_info_channel <= CH_MAX_2G_CHANNEL) ?
+					IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ);
+
+				channel = ieee80211_get_channel(wl_to_wiphy(wl), freq);
+				cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid, channel, GFP_KERNEL);
+			}
+#else
			cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid, GFP_KERNEL);
+#endif
			set_bit(WL_STATUS_CONNECTED, &wl->status);
			wl->profile->active = true;
		}