diff options
| author | Holger Schurig <hs4233@mail.mn-solutions.de> | 2007-08-02 11:50:12 -0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:49:50 -0700 |
| commit | 3cf840914bd467fa4cc76af1a01bba4d2813131c (patch) | |
| tree | ce3adcd8be98a4e1cf5c0968ec8742fbd8fac029 /drivers/net/wireless/libertas/tx.c | |
| parent | c95c7f930ec6fee029c8e7957ab95b3967578070 (diff) | |
| download | lwn-3cf840914bd467fa4cc76af1a01bba4d2813131c.tar.gz lwn-3cf840914bd467fa4cc76af1a01bba4d2813131c.zip | |
[PATCH] libertas: access mesh_dev more carefully
The CF/SDIO firmware doesn't support Mesh, so priv->mesh_dev is
NULL there. Protect all accesses.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas/tx.c')
| -rw-r--r-- | drivers/net/wireless/libertas/tx.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/wireless/libertas/tx.c b/drivers/net/wireless/libertas/tx.c index c2271020aafe..7c383014a274 100644 --- a/drivers/net/wireless/libertas/tx.c +++ b/drivers/net/wireless/libertas/tx.c @@ -159,7 +159,8 @@ done: skb_orphan(skb); /* stop processing outgoing pkts */ netif_stop_queue(priv->dev); - netif_stop_queue(priv->mesh_dev); + if (priv->mesh_dev) + netif_stop_queue(priv->mesh_dev); /* freeze any packets already in our queues */ priv->adapter->TxLockFlag = 1; } else { @@ -198,10 +199,12 @@ static void wlan_tx_queue(wlan_private *priv, struct sk_buff *skb) adapter->tx_queue_ps[adapter->tx_queue_idx++] = skb; if (adapter->tx_queue_idx == NR_TX_QUEUE) { netif_stop_queue(priv->dev); - netif_stop_queue(priv->mesh_dev); + if (priv->mesh_dev) + netif_stop_queue(priv->mesh_dev); } else { netif_start_queue(priv->dev); - netif_start_queue(priv->mesh_dev); + if (priv->mesh_dev) + netif_start_queue(priv->mesh_dev); } spin_unlock(&adapter->txqueue_lock); @@ -285,7 +288,8 @@ void libertas_send_tx_feedback(wlan_private * priv) priv->adapter->TxLockFlag = 0; if (priv->adapter->connect_status == LIBERTAS_CONNECTED) { netif_wake_queue(priv->dev); - netif_wake_queue(priv->mesh_dev); + if (priv->mesh_dev) + netif_wake_queue(priv->mesh_dev); } } EXPORT_SYMBOL_GPL(libertas_send_tx_feedback); |