Add the missing unlock before return from function brcmf_notify_vif_event()
in the error handling case.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>