nl80211: fix nl80211_send_iface() error paths

Evidently I introduced a locking bug in my change here,
the nla_put_failure sometimes needs to unlock. Fix it.

Fixes: 44905265bc15 ("nl80211: don't expose wdev->ssid for most interfaces")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1 file changed