[PATCH] orinoco: orinoco_send_wevents() could return without unlocking.

Signed-off-by: Pavel Roskin <proski@gnu.org>
orinoco_send_wevents() could return without unlocking.

Failure to read BSSID from the hardware would cause orinoco_send_wevents() to
return with lock held.  Found by sparse.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>