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mt76: mac: run mt76x02_mac_work routine atomically

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Grab mt76_dev mutex in mt76x02_mac_work handler since it runs
concurrently with mt76x{0,2}_set_channel routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2018-12-06 17:07:39 +01:00 committed by Felix Fietkau
parent 374eb1b555
commit 4989338ed3
1 changed files with 4 additions and 0 deletions
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4
drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
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@ -784,6 +784,8 @@ void mt76x02_mac_work(struct work_struct *work)
mac_work.work);
int i, idx;
mutex_lock(&dev->mt76.mutex);
mt76x02_update_channel(&dev->mt76);
for (i = 0, idx = 0; i < 16; i++) {
u32 val = mt76_rr(dev, MT_TX_AGG_CNT(i));
@ -796,6 +798,8 @@ void mt76x02_mac_work(struct work_struct *work)
if (!dev->beacon_mask)
mt76x02_check_mac_err(dev);
mutex_unlock(&dev->mt76.mutex);
mt76_tx_status_check(&dev->mt76, NULL, false);
ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mac_work,