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authorHolger Schurig <hs4233@mail.mn-solutions.de>2007-08-02 17:50:12 +0200
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-11 01:49:50 +0200
commit3cf840914bd467fa4cc76af1a01bba4d2813131c (patch)
treece3adcd8be98a4e1cf5c0968ec8742fbd8fac029 /drivers/net/wireless/libertas/tx.c
parent[PATCH] libertas: uppercase some #defines (diff)
downloadlinux-3cf840914bd467fa4cc76af1a01bba4d2813131c.tar.xz
linux-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.c12
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);