From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 25 Feb 2016 05:51:12 +0000 (+0000)
Subject: ASoC: rsnd: don't call update callback if it was NULL
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=d7289565483c65094d0473555625a4acd89567d3;p=openwrt%2Fstaging%2Fblogic.git

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

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index ba37b0d55b21..3a3dc2ff18c9 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -927,7 +927,7 @@ static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
 		}
 	}
 
-	if (change)
+	if (change && cfg->update)
 		cfg->update(cfg->io, mod);
 
 	return change;