ASoC: codecs: remove redundant ret variable

Return value from devm_snd_soc_register_component() directly instead
of taking this in another redundant variable.
Reported-by: NZeal Robot <zealci@zte.com.cn>
Signed-off-by: NMinghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: NCGEL ZTE <cgel.zte@gmail.com>
Acked-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220110012833.643994-1-chi.minghao@zte.com.cnSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/codecs/wm8971.c

@@ -676,7 +676,6 @@ static int wm8971_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct wm8971_priv *wm8971;
-	int ret;
 
 	wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv),
 			      GFP_KERNEL);
@@ -689,10 +688,8 @@ static int wm8971_i2c_probe(struct i2c_client *i2c,
 
 	i2c_set_clientdata(i2c, wm8971);
 
-	ret = devm_snd_soc_register_component(&i2c->dev,
+	return devm_snd_soc_register_component(&i2c->dev,
 			&soc_component_dev_wm8971, &wm8971_dai, 1);
-
-	return ret;
 }
 
 static const struct i2c_device_id wm8971_i2c_id[] = {