diff options
Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8180/dev.c')
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180/dev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index 45d2cc14d71..959e699702e 100644 --- a/drivers/net/wireless/rtl818x/rtl8180/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c @@ -341,6 +341,12 @@ static void rtl8180_tx(struct ieee80211_hw *dev, */ wmb(); entry->flags = cpu_to_le32(tx_flags); + /* We must be sure this has been written before followings HW + * register write, because this write will made the HW attempts + * to DMA the just-written data + */ + wmb(); + __skb_queue_tail(&ring->queue, skb); if (ring->entries - skb_queue_len(&ring->queue) < 2) ieee80211_stop_queue(dev, prio); |