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cfg80211: fix P2P-Device stop locking

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cfg80211_stop_p2p_device() requires the devlist_mtx to
be held, but nl80211_stop_p2p_device() doesn't acquire
it which is a locking error and causes a warning (when
lockdep is enabled). Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-04-19 12:18:19 +02:00
parent a42c74ee60
commit 65e8d5b8cb
1 changed files with 2 additions and 0 deletions
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2
net/wireless/nl80211.c
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@ -8159,9 +8159,11 @@ static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->stop_p2p_device)
return -EOPNOTSUPP;
mutex_lock(&rdev->devlist_mtx);
mutex_lock(&rdev->sched_scan_mtx);
cfg80211_stop_p2p_device(rdev, wdev);
mutex_unlock(&rdev->sched_scan_mtx);
mutex_unlock(&rdev->devlist_mtx);
return 0;
}