AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 09:51:00 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

mac80211: Use queue_lock() in ieee80211_ht_agg_queue_remove().

Browse Source 
qdisc_root_lock() is only %100 safe to use when the RTNL
semaphore is held.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-02 23:25:50 -07:00
parent 5fb662297b
commit 35ed4e7598
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
net/mac80211/wme.c
View File

@ -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);
}
}