diff options
| author | Holger Schurig | 2007-08-02 17:50:12 +0200 |
|---|---|---|
| committer | David S. Miller | 2007-10-11 01:49:50 +0200 |
| commit | 3cf840914bd467fa4cc76af1a01bba4d2813131c (patch) | |
| tree | ce3adcd8be98a4e1cf5c0968ec8742fbd8fac029 /drivers/net/wireless/libertas/main.c | |
| parent | [PATCH] libertas: uppercase some #defines (diff) | |
| download | kernel-qcow2-linux-3cf840914bd467fa4cc76af1a01bba4d2813131c.tar.gz kernel-qcow2-linux-3cf840914bd467fa4cc76af1a01bba4d2813131c.tar.xz kernel-qcow2-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/main.c')
| -rw-r--r-- | drivers/net/wireless/libertas/main.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 170dc2394d25..b4e2cd19c3bc 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -298,10 +298,12 @@ static int libertas_dev_open(struct net_device *dev) if (adapter->connect_status == LIBERTAS_CONNECTED) { netif_carrier_on(priv->dev); - netif_carrier_on(priv->mesh_dev); + if (priv->mesh_dev) + netif_carrier_on(priv->mesh_dev); } else { netif_carrier_off(priv->dev); - netif_carrier_off(priv->mesh_dev); + if (priv->mesh_dev) + netif_carrier_off(priv->mesh_dev); } lbs_deb_leave(LBS_DEB_NET); @@ -408,7 +410,8 @@ static int libertas_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } netif_stop_queue(priv->dev); - netif_stop_queue(priv->mesh_dev); + if (priv->mesh_dev) + netif_stop_queue(priv->mesh_dev); if (libertas_process_tx(priv, skb) == 0) dev->trans_start = jiffies; @@ -474,7 +477,8 @@ static void libertas_tx_timeout(struct net_device *dev) wake_up_interruptible(&priv->waitq); } else 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); } lbs_deb_leave(LBS_DEB_TX); @@ -1254,7 +1258,6 @@ int libertas_add_mesh(wlan_private *priv, struct device *dev) ret = 0; goto done; - err_unregister: unregister_netdev(mesh_dev); @@ -1454,7 +1457,8 @@ void libertas_interrupt(struct net_device *dev) if (priv->adapter->psstate == PS_STATE_SLEEP) { priv->adapter->psstate = PS_STATE_AWAKE; netif_wake_queue(dev); - netif_wake_queue(priv->mesh_dev); + if (priv->mesh_dev) + netif_wake_queue(priv->mesh_dev); } wake_up_interruptible(&priv->waitq); |