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libertas: fix lbs_rtap attribute in sysfs

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At least it doesn't oops when you attempt to read or write it now.
Only when you enable it and then later turn it off. And when it's
enabled I don't see how it actually works.

But one fewer oops is good, for now...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Woodhouse 2007-12-08 18:29:16 +00:00 committed by David S. Miller
parent 59f3e4bf1e
commit e7deced05f
2 changed files with 6 additions and 14 deletions
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2
drivers/net/wireless/libertas/dev.h
View File

@ -143,8 +143,6 @@ struct lbs_private {
all other bits reserved 0 */
u8 dnld_sent;
struct device *hotplug_device;
/** thread to service interrupts */
struct task_struct *main_thread;
wait_queue_head_t waitq;

18
drivers/net/wireless/libertas/main.c
View File

@ -256,8 +256,7 @@ void lbs_remove_rtap(struct lbs_private *priv);
static ssize_t lbs_rtap_get(struct device *dev,
struct device_attribute *attr, char * buf)
{
struct lbs_private *priv = (struct lbs_private *)
(to_net_dev(dev))->priv;
struct lbs_private *priv = to_net_dev(dev)->priv;
struct lbs_adapter *adapter = priv->adapter;
return snprintf(buf, 5, "0x%X\n", adapter->monitormode);
}
@ -269,8 +268,7 @@ static ssize_t lbs_rtap_set(struct device *dev,
struct device_attribute *attr, const char * buf, size_t count)
{
int monitor_mode;
struct lbs_private *priv = (struct lbs_private *)
(to_net_dev(dev))->priv;
struct lbs_private *priv = to_net_dev(dev)->priv;
struct lbs_adapter *adapter = priv->adapter;
sscanf(buf, "%x", &monitor_mode);
@ -1158,7 +1156,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
priv->card = card;
priv->mesh_open = 0;
priv->infra_open = 0;
priv->hotplug_device = dmdev;
/* Setup the OS Interface to our functions */
dev->open = lbs_open;
@ -1178,15 +1175,13 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
SET_NETDEV_DEV(dev, dmdev);
priv->rtap_net_dev = NULL;
if (device_create_file(dmdev, &dev_attr_lbs_rtap))
goto err_init_adapter;
lbs_deb_thread("Starting main thread...\n");
init_waitqueue_head(&priv->waitq);
priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
if (IS_ERR(priv->main_thread)) {
lbs_deb_thread("Error creating main thread.\n");
goto err_kthread_run;
goto err_init_adapter;
}
priv->work_thread = create_singlethread_workqueue("lbs_worker");
@ -1196,9 +1191,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
goto done;
err_kthread_run:
device_remove_file(dmdev, &dev_attr_lbs_rtap);
err_init_adapter:
lbs_free_adapter(priv);
@ -1224,7 +1216,7 @@ int lbs_remove_card(struct lbs_private *priv)
lbs_remove_rtap(priv);
dev = priv->dev;
device_remove_file(priv->hotplug_device, &dev_attr_lbs_rtap);
device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
cancel_delayed_work(&priv->scan_work);
cancel_delayed_work(&priv->assoc_work);
@ -1273,6 +1265,8 @@ int lbs_start_card(struct lbs_private *priv)
lbs_pr_err("cannot register ethX device\n");
goto done;
}
if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
lbs_pr_err("cannot register lbs_rtap attribute\n");
lbs_debugfs_init_one(priv, dev);