Add the missing unlock before return from function rcar_thermal_update_temp()
in the error handling case.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>