libertas: release bss references and avoid warning from cfg80211_inform_bss

  CC [M]  drivers/net/wireless/libertas/cfg.o
drivers/net/wireless/libertas/cfg.c: In function ‘lbs_ret_scan’:
drivers/net/wireless/libertas/cfg.c:636:24: warning: ignoring return value of ‘cfg80211_inform_bss’, declared with attribute warn_unused_result
drivers/net/wireless/libertas/cfg.c: In function ‘lbs_join_post’:
drivers/net/wireless/libertas/cfg.c:1766:21: warning: ignoring return value of ‘cfg80211_inform_bss’, declared with attribute warn_unused_result
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/cfg.c

@@ -485,6 +485,7 @@ static int lbs_cfg_set_channel(struct wiphy *wiphy,
 static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
 	struct cmd_header *resp)
 {
+	struct cfg80211_bss *bss;
 	struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
 	int bsssize;
 	const u8 *pos;
@@ -632,12 +633,14 @@ static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
 				     LBS_SCAN_RSSI_TO_MBM(rssi)/100);
 
 			if (channel &&
-			    !(channel->flags & IEEE80211_CHAN_DISABLED))
-				cfg80211_inform_bss(wiphy, channel,
+			    !(channel->flags & IEEE80211_CHAN_DISABLED)) {
+				bss = cfg80211_inform_bss(wiphy, channel,
 					bssid, le64_to_cpu(*(__le64 *)tsfdesc),
 					capa, intvl, ie, ielen,
 					LBS_SCAN_RSSI_TO_MBM(rssi),
 					GFP_KERNEL);
+				cfg80211_put_bss(bss);
+			}
 		} else
 			lbs_deb_scan("scan response: missing BSS channel IE\n");
 
@@ -1720,6 +1723,7 @@ static void lbs_join_post(struct lbs_private *priv,
 		   2 + 2 +                      /* atim */
 		   2 + 8];                      /* extended rates */
 	u8 *fake = fake_ie;
+	struct cfg80211_bss *bss;
 
 	lbs_deb_enter(LBS_DEB_CFG80211);
 
@@ -1763,7 +1767,7 @@ static void lbs_join_post(struct lbs_private *priv,
 	*fake++ = 0x6c;
 	lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
 
-	cfg80211_inform_bss(priv->wdev->wiphy,
+	bss = cfg80211_inform_bss(priv->wdev->wiphy,
 				  params->channel,
 				  bssid,
 				  0,
@@ -1771,6 +1775,7 @@ static void lbs_join_post(struct lbs_private *priv,
 				  params->beacon_interval,
 				  fake_ie, fake - fake_ie,
 				  0, GFP_KERNEL);
+	cfg80211_put_bss(bss);
 
 	memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
 	priv->wdev->ssid_len = params->ssid_len;