iwmc3200wifi: invalidate keys when changing the BSSID

While associated, we have to invalidate our key cache if we clear our BSSID
through siwap.
Signed-off-by: NSamuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwmc3200wifi/wext.c

@@ -82,6 +82,7 @@ static int iwm_wext_siwap(struct net_device *dev, struct iw_request_info *info,
 			  struct sockaddr *ap_addr, char *extra)
 {
 	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	int ret;
 
 	if (iwm->conf.mode == UMAC_MODE_IBSS)
 		return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
@@ -104,10 +105,26 @@ static int iwm_wext_siwap(struct net_device *dev, struct iw_request_info *info,
 	}
 
 	if (iwm->umac_profile_active) {
+		int i;
+
 		if (!memcmp(&iwm->umac_profile->bssid[0], iwm->bssid, ETH_ALEN))
 			return 0;
 
-		iwm_invalidate_mlme_profile(iwm);
+		/*
+		 * If we're clearing the BSSID, and we're associated,
+		 * we have to clear the keys as they're no longer valid.
+		 */
+		if (is_zero_ether_addr(ap_addr->sa_data)) {
+			for (i = 0; i < IWM_NUM_KEYS; i++)
+				iwm->keys[i].in_use = 0;
+
+		}
+
+		ret = iwm_invalidate_mlme_profile(iwm);
+		if (ret < 0) {
+			IWM_ERR(iwm, "Couldn't invalidate profile\n");
+			return ret;
+		}
 	}
 
 	if (iwm->umac_profile->ssid.ssid_len)