b43: store current channel using struct cfg80211_chan_def

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 5e4eed3..2b99ed3 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3808,6 +3808,7 @@
 	b43_mac_suspend(dev);
 
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		phy->chandef = &conf->chandef;
 		phy->channel = conf->chandef.chan->hw_value;
 		if (conf_is_ht(conf))
 			phy->is_40mhz = conf_is_ht40_minus(conf) ||