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mac80211: don't send null data packet when not associated 

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>
This commit is contained in:
Johannes Berg 2012-11-08 14:06:28 +01:00 committed by Greg Kroah-Hartman
parent 1cbc74e7ed
commit ab4e547760
1 changed files with 2 additions and 0 deletions
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2
net/mac80211/util.c
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@ -1341,6 +1341,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
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);
}