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Code Issues Releases Wiki Activity

mac80211: fix notify_mac function 

The ieee80211_notify_mac() function uses ieee80211_sta_req_auth() which
in turn calls ieee80211_set_disassoc() which calls a few functions that
need to be able to sleep, so ieee80211_notify_mac() cannot use RCU
locking for the interface list and must use rtnl locking instead.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-11-11 11:28:04 +01:00 committed by John W. Linville
parent 8f7c41d4ce
commit db7fb86b0c
1 changed files with 3 additions and 3 deletions
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6
net/mac80211/mlme.c
View File

@ -2570,14 +2570,14 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
switch (notif_type) {
case IEEE80211_NOTIFY_RE_ASSOC:
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
rtnl_lock();
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
ieee80211_sta_req_auth(sdata, &sdata->u.sta);
}
rcu_read_unlock();
rtnl_unlock();
break;
}
}