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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 <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2018-12-28 13:43:56 +01:00
committed by Felix Fietkau
parent 1d2819e39e
commit 9c9fae34bc
1 changed files with 4 additions and 0 deletions
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mt76x02_mac.c
+4
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@@ -779,6 +779,8 @@ 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));
@@ -791,6 +793,8 @@ 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,