cfg80211: allow cfg80211_connect_result with bssid == NULL

In case of connection failure, the bssid info is not a must have.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/core.c b/net/wireless/core.c
index c150071..154e1e2 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -12,6 +12,7 @@
 #include <linux/debugfs.h>
 #include <linux/notifier.h>
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/rtnetlink.h>
 #include <net/genetlink.h>
 #include <net/cfg80211.h>
@@ -309,7 +310,8 @@
 		switch (ev->type) {
 		case EVENT_CONNECT_RESULT:
 			__cfg80211_connect_result(
-				wdev->netdev, ev->cr.bssid,
+				wdev->netdev, is_zero_ether_addr(ev->cr.bssid) ?
+				NULL : ev->cr.bssid,
 				ev->cr.req_ie, ev->cr.req_ie_len,
 				ev->cr.resp_ie, ev->cr.resp_ie_len,
 				ev->cr.status,