diff mbox series

mt76: mt7615: hold mt76 lock queueing wd in mt7615_queue_key_update

Message ID a4ba01f0fc5c4bdd532d819ac0483496d3f01f6a.1596100771.git.lorenzo@kernel.org (mailing list archive)
State Accepted
Delegated to: Felix Fietkau
Headers show
Series mt76: mt7615: hold mt76 lock queueing wd in mt7615_queue_key_update | expand

Commit Message

Lorenzo Bianconi July 30, 2020, 9:21 a.m. UTC
wq queue is always updated holding mt76 spinlock. Grab mt76 lock in
mt7615_queue_key_update() before putting a new element at the end of the
queue.

Fixes: eb99cc95c3b65 ("mt76: mt7615: introduce mt7663u support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/main.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 2d0b1f49fdbc..bafe2bdeb5eb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -361,7 +361,10 @@  mt7615_queue_key_update(struct mt7615_dev *dev, enum set_key_cmd cmd,
 	wd->key.keylen = key->keylen;
 	wd->key.cmd = cmd;
 
+	spin_lock_bh(&dev->mt76.lock);
 	list_add_tail(&wd->node, &dev->wd_head);
+	spin_unlock_bh(&dev->mt76.lock);
+
 	queue_work(dev->mt76.wq, &dev->wtbl_work);
 
 	return 0;