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cfg80211: respect iface combinations when starting operation

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devlist_mtx locking is changed to accomodate changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michal Kazior 2012-06-29 12:47:08 +02:00 • committed by Johannes Berg
parent d4e50c5917
commit e4e32459c2
6 changed files with 52 additions and 5 deletions
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2
net/wireless/core.c
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@ -990,7 +990,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
return notifier_from_errno(-EOPNOTSUPP);
if (rfkill_blocked(rdev->rfkill))
return notifier_from_errno(-ERFKILL);
mutex_lock(&rdev->devlist_mtx);
ret = cfg80211_can_add_interface(rdev, wdev->iftype);
mutex_unlock(&rdev->devlist_mtx);
if (ret)
return notifier_from_errno(ret);
cfg80211_lock_rdev(rdev);