ASoC: cs35l45: Make cs35l45_remove() return void

cs35l45_remove() always returns zero. Make it return no value which
makes it easier to see in the callers that there is no error to handle.

Also the return value of i2c driver remove callbacks is ignored anyway.
This prepares making i2c remove callbacks return void, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220520173349.774366-1-u.kleine-koenig@pengutronix.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs35l45-i2c.c

@@ -40,7 +40,9 @@ static int cs35l45_i2c_remove(struct i2c_client *client)
 {
 	struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);
 
-	return cs35l45_remove(cs35l45);
+	cs35l45_remove(cs35l45);
+
+	return 0;
 }
 
 static const struct of_device_id cs35l45_of_match[] = {

sound/soc/codecs/cs35l45.c

@@ -665,7 +665,7 @@ int cs35l45_probe(struct cs35l45_private *cs35l45)
 }
 EXPORT_SYMBOL_NS_GPL(cs35l45_probe, SND_SOC_CS35L45);
 
-int cs35l45_remove(struct cs35l45_private *cs35l45)
+void cs35l45_remove(struct cs35l45_private *cs35l45)
 {
 	pm_runtime_disable(cs35l45->dev);
 
@@ -673,8 +673,6 @@ int cs35l45_remove(struct cs35l45_private *cs35l45)
 	regulator_disable(cs35l45->vdd_a);
 	/* VDD_BATT must be the last to power-off */
 	regulator_disable(cs35l45->vdd_batt);
-
-	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(cs35l45_remove, SND_SOC_CS35L45);
 

sound/soc/codecs/cs35l45.h

@@ -212,6 +212,6 @@ extern const struct regmap_config cs35l45_spi_regmap;
 int cs35l45_apply_patch(struct cs35l45_private *cs43l45);
 unsigned int cs35l45_get_clk_freq_id(unsigned int freq);
 int cs35l45_probe(struct cs35l45_private *cs35l45);
-int cs35l45_remove(struct cs35l45_private *cs35l45);
+void cs35l45_remove(struct cs35l45_private *cs35l45);
 
 #endif /* CS35L45_H */