ASoC: rk817: fix a warning in rk817_probe()

The return value of snd_soc_component_write() is stored but not
evaluated and this results in a warning when W=1 is set. Stop storing
the return value to be consistent with all other calls of
snd_soc_component_write() and to remove the warning.

Fixes: 0d6a04d ("ASoC: Add Rockchip rk817 audio CODEC support")

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

sound/soc/codecs/rk817_codec.c

@@ -415,12 +415,11 @@ static int rk817_probe(struct snd_soc_component *component)
 {
 	struct rk817_codec_priv *rk817 = snd_soc_component_get_drvdata(component);
 	struct rk808 *rk808 = dev_get_drvdata(component->dev->parent);
-	int ret;
 
 	snd_soc_component_init_regmap(component, rk808->regmap);
 	rk817->component = component;
 
-	ret = snd_soc_component_write(component, RK817_CODEC_DTOP_LPT_SRST, 0x40);
+	snd_soc_component_write(component, RK817_CODEC_DTOP_LPT_SRST, 0x40);
 
 	rk817_init(component);