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mac80211: fix IBSS code to not sleep while atomic

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With the RCU locking here we sleep while in an atomic context,
since we can sleep just use mutex locking for the interface
list instead of RCU. Sorry, seems I didn't get that in my UML
test.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-04-21 00:30:49 +02:00 • committed by John W. Linville
parent 0cf4c01ebe
commit 29b4a4f7c7
1 changed files with 3 additions and 3 deletions
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6
net/mac80211/ibss.c
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@ -784,14 +784,14 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
continue;
sdata->u.ibss.last_scan_completed = jiffies;
ieee80211_sta_find_ibss(sdata);
}
rcu_read_unlock();
mutex_unlock(&local->iflist_mtx);
}
ieee80211_rx_result