mac80211 : fix for iwconfig in ad-hoc mode

The patch checks interface status, if it is in IBSS_JOINED mode
show cell id it is associated with.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index a8bb8e3..6106cb7 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -496,7 +496,8 @@
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
 	    sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
-		if (sdata->u.sta.state == IEEE80211_ASSOCIATED) {
+		if (sdata->u.sta.state == IEEE80211_ASSOCIATED ||
+		    sdata->u.sta.state == IEEE80211_IBSS_JOINED) {
 			ap_addr->sa_family = ARPHRD_ETHER;
 			memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
 			return 0;