mac80211: probe with correct SSID

While associated, we should probe with the SSID we're associated to,
not the scan SSID.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/mlme.c

@@ -942,8 +942,8 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
 				disassoc = 1;
 			} else
 				ieee80211_send_probe_req(sdata, ifsta->bssid,
-							 local->scan_ssid,
-							 local->scan_ssid_len);
+							 ifsta->ssid,
+							 ifsta->ssid_len);
 			ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
 		} else {
 			ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;