ASoC: rsnd: don't call update callback if it was NULL

commit d7289565483c65094d0473555625a4acd89567d3 upstream.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Thong Ho <thong.ho.px@rvc.renesas.com>
Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 10b93991ae97bd99efa07bf8eb091626509a8c08..362446c36c9ea7778c2f4477fc0cdb5fca4369c1 100644 (file)
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1016,7 +1016,7 @@ static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
                }
        }
 
-       if (change)
+       if (change && cfg->update)
                cfg->update(cfg->io, mod);
 
        return change;