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mac80211: fix rcu locking 

Add a missing rcu_read_unlock() before jumping out
of the ieee80211_change_station() function in the
error case.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-11-20 10:09:14 +01:00 committed by John W. Linville
parent f1cf2dbd0f
commit 3305443c96
1 changed files with 3 additions and 1 deletions
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4
net/mac80211/cfg.c
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@ -823,8 +823,10 @@ static int ieee80211_change_station(struct wiphy *wiphy,
}
if (params->vlan->ieee80211_ptr->use_4addr) {
if (vlansdata->u.vlan.sta)
if (vlansdata->u.vlan.sta) {
rcu_read_unlock();
return -EBUSY;
}
rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
}