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mac80211: protect ->scanning by mutex in ieee80211_work_work() 

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka 2012-03-28 16:01:20 +02:00 committed by John W. Linville
parent 133d40f9a2
commit 5f5460706e
1 changed files with 5 additions and 3 deletions
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8
net/mac80211/work.c
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@ -122,9 +122,6 @@ static void ieee80211_work_work(struct work_struct *work)
enum work_action rma;
bool remain_off_channel = false;
if (local->scanning)
return;
/*
* ieee80211_queue_work() should have picked up most cases,
* here we'll pick the rest.
@ -134,6 +131,11 @@ static void ieee80211_work_work(struct work_struct *work)
mutex_lock(&local->mtx);
if (local->scanning) {
mutex_unlock(&local->mtx);
return;
}
ieee80211_recalc_idle(local);
list_for_each_entry_safe(wk, tmp, &local->work_list, list) {