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mac.c: fix tx status processing locking

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Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2015-06-13 09:26:41 +02:00
parent d637dc05ab
commit 45746249c1
1 changed files with 5 additions and 3 deletions
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mac.c
+5 -3
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@@ -376,15 +376,18 @@ void mt76_mac_poll_tx_status(struct mt76_dev *dev, bool irq)
trace_mac_txstat_poll(dev);
spin_lock_irqsave(&dev->irq_lock, flags);
while (!irq || !kfifo_is_full(&dev->txstatus_fifo)) {
u32 stat1, stat2;
spin_lock_irqsave(&dev->irq_lock, flags);
stat1 = mt76_rr(dev, MT_TX_STAT_FIFO);
if (!(stat1 & MT_TX_STAT_FIFO_VALID))
if (!(stat1 & MT_TX_STAT_FIFO_VALID)) {
spin_unlock_irqrestore(&dev->irq_lock, flags);
break;
}
stat2 = mt76_rr(dev, MT_TX_STAT_FIFO_EXT);
spin_unlock_irqrestore(&dev->irq_lock, flags);
stat.valid = 1;
stat.success = !!(stat1 & MT_TX_STAT_FIFO_SUCCESS);
@@ -403,7 +406,6 @@ void mt76_mac_poll_tx_status(struct mt76_dev *dev, bool irq)
kfifo_put(&dev->txstatus_fifo, stat);
}
spin_unlock_irqrestore(&dev->irq_lock, flags);
}
void mt76_mac_queue_txdone(struct mt76_dev *dev, struct sk_buff *skb,