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gianfar: Do right check on num_txbdfree 

This patch fixes a wrong check on num_txbdfree. It could lead to
num_txbdfree become nagative.  Result was that the gianfar stops
sending data.

Changes from first version :
- removed a space between parens (David Millers comment)
- full email address in signed off line

Signed-off-by: Rini van Zetten <rini@arvoo.nl>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rini van Zetten 2009-02-27 03:18:48 -08:00 committed by David S. Miller
parent 1844f74794
commit 7958a45310
1 changed files with 1 additions and 1 deletions
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2
drivers/net/gianfar.c
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@ -1284,7 +1284,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
spin_lock_irqsave(&priv->txlock, flags);
/* check if there is space to queue this packet */
if (nr_frags > priv->num_txbdfree) {
if ((nr_frags+1) > priv->num_txbdfree) {
/* no space, stop the queue */
netif_stop_queue(dev);
dev->stats.tx_fifo_errors++;