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-rw-r--r--net/mac80211/work.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index 15e1ba9..bdb1d05 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -920,11 +920,16 @@ static void ieee80211_work_work(struct work_struct *work)
run_again(local, jiffies + HZ/2);
}
- if (list_empty(&local->work_list) && local->scan_req)
+ mutex_lock(&local->scan_mtx);
+
+ if (list_empty(&local->work_list) && local->scan_req &&
+ !local->scanning)
ieee80211_queue_delayed_work(&local->hw,
&local->scan_work,
round_jiffies_relative(0));
+ mutex_unlock(&local->scan_mtx);
+
mutex_unlock(&local->work_mtx);
ieee80211_recalc_idle(local);
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