[ 092/218] mac80211: clear bssid on auth/assoc failure

[Greg Kroah-Hartman]

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eliad Peller <eliad@xxxxxxxxxx>

commit 3d2abdfdf14f4d6decc2023708211e19b096f4ca upstream.

ifmgd->bssid wasn't cleared properly in some
auth/assoc failure cases, causing mac80211 and
the low-level driver to go out of sync.

Clear ifmgd->bssid on failure, and notify the driver.

Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 net/mac80211/mlme.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3232,6 +3232,8 @@ int ieee80211_mgd_auth(struct ieee80211_
 	goto out_unlock;
 
  err_clear:
+	memset(ifmgd->bssid, 0, ETH_ALEN);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 	ifmgd->auth_data = NULL;
  err_free:
 	kfree(auth_data);
@@ -3410,6 +3412,8 @@ int ieee80211_mgd_assoc(struct ieee80211
 	err = 0;
 	goto out;
  err_clear:
+	memset(ifmgd->bssid, 0, ETH_ALEN);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 	ifmgd->assoc_data = NULL;
  err_free:
 	kfree(assoc_data);


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