Fixes for 4.19

[thirdparty/kernel/stable-queue.git] / releases / 3.6.8 / mac80211-don-t-send-null-data-packet-when-not-associated.patch

From 20f544eea03db4b498942558b882d463ce575c3e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 8 Nov 2012 14:06:28 +0100
Subject: mac80211: don't send null data packet when not associated

From: Johannes Berg <johannes.berg@intel.com>

commit 20f544eea03db4b498942558b882d463ce575c3e upstream.

On resume or firmware recovery, mac80211 sends a null
data packet to see if the AP is still around and hasn't
disconnected us. However, it always does this even if
it wasn't even connected before, leading to a warning
in the new channel context code. Fix this by checking
that it's associated.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/mac80211/util.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1434,6 +1434,8 @@ int ieee80211_reconfig(struct ieee80211_
 		list_for_each_entry(sdata, &local->interfaces, list) {
 			if (sdata->vif.type != NL80211_IFTYPE_STATION)
 				continue;
+			if (!sdata->u.mgd.associated)
+				continue;
 
 			ieee80211_send_nullfunc(local, sdata, 0);
 		}