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mac80211: insert WDS peer after adding interface

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This reorders the open code so that WDS peer STA info entries
are added after the corresponding interface is added to the
driver so that driver callbacks aren't invoked out of order.
Also make any master device startup fatal.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-04-24 14:18:37 +02:00 committed by John W. Linville
parent e94e106831
commit 636c5d488b
1 changed files with 27 additions and 17 deletions
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44
net/mac80211/main.c
View file

@ -257,20 +257,6 @@ static int ieee80211_open(struct net_device *dev)
case IEEE80211_IF_TYPE_WDS:
if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
return -ENOLINK;
/* Create STA entry for the WDS peer */
sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
GFP_KERNEL);
if (!sta)
return -ENOMEM;
sta->flags |= WLAN_STA_AUTHORIZED;
res = sta_info_insert(sta);
if (res) {
/* STA has been freed */
return res;
}
break;
case IEEE80211_IF_TYPE_VLAN:
if (!sdata->u.vlan.ap)
@ -337,10 +323,8 @@ static int ieee80211_open(struct net_device *dev)
conf.type = sdata->vif.type;
conf.mac_addr = dev->dev_addr;
res = local->ops->add_interface(local_to_hw(local), &conf);
if (res && !local->open_count && local->ops->stop)
local->ops->stop(local_to_hw(local));
if (res)
return res;
goto err_stop;
ieee80211_if_config(dev);
ieee80211_reset_erp_info(dev);
@ -353,9 +337,29 @@ static int ieee80211_open(struct net_device *dev)
netif_carrier_on(dev);
}
if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
/* Create STA entry for the WDS peer */
sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
GFP_KERNEL);
if (!sta) {
res = -ENOMEM;
goto err_del_interface;
}
sta->flags |= WLAN_STA_AUTHORIZED;
res = sta_info_insert(sta);
if (res) {
/* STA has been freed */
goto err_del_interface;
}
}
if (local->open_count == 0) {
res = dev_open(local->mdev);
WARN_ON(res);
if (res)
goto err_del_interface;
tasklet_enable(&local->tx_pending_tasklet);
tasklet_enable(&local->tasklet);
}
@ -390,6 +394,12 @@ static int ieee80211_open(struct net_device *dev)
netif_start_queue(dev);
return 0;
err_del_interface:
local->ops->remove_interface(local_to_hw(local), &conf);
err_stop:
if (!local->open_count && local->ops->stop)
local->ops->stop(local_to_hw(local));
return res;
}
static int ieee80211_stop(struct net_device *dev)