Commit 35ed4e75 authored by David S. Miller's avatar David S. Miller
Browse files

mac80211: Use queue_lock() in ieee80211_ht_agg_queue_remove().



qdisc_root_lock() is only %100 safe to use when the RTNL
semaphore is held.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5fb66229
......@@ -241,12 +241,14 @@ void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
} else {
struct netdev_queue *txq;
spinlock_t *root_lock;
struct Qdisc *q;
txq = netdev_get_tx_queue(local->mdev, agg_queue);
root_lock = qdisc_root_lock(txq->qdisc);
q = rcu_dereference(txq->qdisc);
root_lock = qdisc_lock(q);
spin_lock_bh(root_lock);
qdisc_reset(txq->qdisc);
qdisc_reset(q);
spin_unlock_bh(root_lock);
}
}
......
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