[patch 02/47] b43: Do not return TX_BUSY from op_tx

[Greg KH]

2.6.25-stable review patch.  If anyone has any objections, please let us
know.

------------------
From: Michael Buesch <mb@xxxxxxxxx>

Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.
This will fix the resume hang.

Upstream commit is
66193a7cef2239bfd1b9b96e304770facf7a49c7

Signed-off-by: Michael Buesch <mb@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>


---
 drivers/net/wireless/b43/main.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2607,7 +2607,7 @@ static int b43_op_tx(struct ieee80211_hw
 	int err;
 
 	if (unlikely(!dev))
-		return NETDEV_TX_BUSY;
+		goto drop_packet;
 
 	/* Transmissions on seperate queues can run concurrently. */
 	read_lock_irqsave(&wl->tx_lock, flags);
@@ -2619,7 +2619,12 @@ static int b43_op_tx(struct ieee80211_hw
 	read_unlock_irqrestore(&wl->tx_lock, flags);
 
 	if (unlikely(err))
-		return NETDEV_TX_BUSY;
+		goto drop_packet;
+	return NETDEV_TX_OK;
+
+drop_packet:
+	/* We can not transmit this packet. Drop it. */
+	dev_kfree_skb_any(skb);
 	return NETDEV_TX_OK;
 }
 

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