Use local variable at local area only.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/87eeeeax16.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>