diff options
Diffstat (limited to 'drivers/net/wireless/orinoco/orinoco.c')
-rw-r--r-- | drivers/net/wireless/orinoco/orinoco.c | 79 |
1 files changed, 54 insertions, 25 deletions
diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c index bc84e2792f8..067d1a9c728 100644 --- a/drivers/net/wireless/orinoco/orinoco.c +++ b/drivers/net/wireless/orinoco/orinoco.c @@ -1610,6 +1610,16 @@ static void orinoco_rx_isr_tasklet(unsigned long data) struct orinoco_rx_data *rx_data, *temp; struct hermes_rx_descriptor *desc; struct sk_buff *skb; + unsigned long flags; + + /* orinoco_rx requires the driver lock, and we also need to + * protect priv->rx_list, so just hold the lock over the + * lot. + * + * If orinoco_lock fails, we've unplugged the card. In this + * case just abort. */ + if (orinoco_lock(priv, &flags) != 0) + return; /* extract desc and skb from queue */ list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) { @@ -1622,6 +1632,8 @@ static void orinoco_rx_isr_tasklet(unsigned long data) kfree(desc); } + + orinoco_unlock(priv, &flags); } /********************************************************************/ @@ -1661,7 +1673,7 @@ static void print_linkstatus(struct net_device *dev, u16 status) s = "UNKNOWN"; } - printk(KERN_INFO "%s: New link status: %s (%04x)\n", + printk(KERN_DEBUG "%s: New link status: %s (%04x)\n", dev->name, s, status); } @@ -3145,8 +3157,20 @@ static int orinoco_pm_notifier(struct notifier_block *notifier, return NOTIFY_DONE; } + +static void orinoco_register_pm_notifier(struct orinoco_private *priv) +{ + priv->pm_notifier.notifier_call = orinoco_pm_notifier; + register_pm_notifier(&priv->pm_notifier); +} + +static void orinoco_unregister_pm_notifier(struct orinoco_private *priv) +{ + unregister_pm_notifier(&priv->pm_notifier); +} #else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */ -#define orinoco_pm_notifier NULL +#define orinoco_register_pm_notifier(priv) do { } while(0) +#define orinoco_unregister_pm_notifier(priv) do { } while(0) #endif /********************************************************************/ @@ -3636,8 +3660,7 @@ struct net_device priv->cached_fw = NULL; /* Register PM notifiers */ - priv->pm_notifier.notifier_call = orinoco_pm_notifier; - register_pm_notifier(&priv->pm_notifier); + orinoco_register_pm_notifier(priv); return dev; } @@ -3645,13 +3668,23 @@ struct net_device void free_orinocodev(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); + struct orinoco_rx_data *rx_data, *temp; - /* No need to empty priv->rx_list: if the tasklet is scheduled - * when we call tasklet_kill it will run one final time, - * emptying the list */ + /* If the tasklet is scheduled when we call tasklet_kill it + * will run one final time. However the tasklet will only + * drain priv->rx_list if the hw is still available. */ tasklet_kill(&priv->rx_tasklet); - unregister_pm_notifier(&priv->pm_notifier); + /* Explicitly drain priv->rx_list */ + list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) { + list_del(&rx_data->list); + + dev_kfree_skb(rx_data->skb); + kfree(rx_data->desc); + kfree(rx_data); + } + + orinoco_unregister_pm_notifier(priv); orinoco_uncache_fw(priv); priv->wpa_ie_len = 0; @@ -5046,33 +5079,30 @@ static int orinoco_ioctl_set_genie(struct net_device *dev, struct orinoco_private *priv = netdev_priv(dev); u8 *buf; unsigned long flags; - int err = 0; /* cut off at IEEE80211_MAX_DATA_LEN */ if ((wrqu->data.length > IEEE80211_MAX_DATA_LEN) || (wrqu->data.length && (extra == NULL))) return -EINVAL; - if (orinoco_lock(priv, &flags) != 0) - return -EBUSY; - if (wrqu->data.length) { buf = kmalloc(wrqu->data.length, GFP_KERNEL); - if (buf == NULL) { - err = -ENOMEM; - goto out; - } + if (buf == NULL) + return -ENOMEM; memcpy(buf, extra, wrqu->data.length); - kfree(priv->wpa_ie); - priv->wpa_ie = buf; - priv->wpa_ie_len = wrqu->data.length; - } else { - kfree(priv->wpa_ie); - priv->wpa_ie = NULL; - priv->wpa_ie_len = 0; + } else + buf = NULL; + + if (orinoco_lock(priv, &flags) != 0) { + kfree(buf); + return -EBUSY; } + kfree(priv->wpa_ie); + priv->wpa_ie = buf; + priv->wpa_ie_len = wrqu->data.length; + if (priv->wpa_ie) { /* Looks like wl_lkm wants to check the auth alg, and * somehow pass it to the firmware. @@ -5081,9 +5111,8 @@ static int orinoco_ioctl_set_genie(struct net_device *dev, */ } -out: orinoco_unlock(priv, &flags); - return err; + return 0; } static int orinoco_ioctl_get_genie(struct net_device *dev, |