ASoC: mediatek: mt8188-mt6359: Cleanup return 0 disguised as return ret

Change all instances of `return ret` to `return 0` at the end of
functions where ret is always zero and also change functions
mt8188_{hdmi,dptx}_codec_init to be consistent with how other
functions are returning errors
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20230608084727.74403-4-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/mt8188/mt8188-mt6359.c

@@ -491,11 +491,13 @@ static int mt8188_hdmi_codec_init(struct snd_soc_pcm_runtime *rtd)
 	}
 
 	ret = snd_soc_component_set_jack(component, &priv->hdmi_jack, NULL);
-	if (ret)
+	if (ret) {
 		dev_info(rtd->dev, "%s, set jack failed on %s (ret=%d)\n",
 			 __func__, component->name, ret);
-
 		return ret;
+	}
+
+	return 0;
 }
 
 static int mt8188_dptx_codec_init(struct snd_soc_pcm_runtime *rtd)
@@ -513,11 +515,13 @@ static int mt8188_dptx_codec_init(struct snd_soc_pcm_runtime *rtd)
 	}
 
 	ret = snd_soc_component_set_jack(component, &priv->dp_jack, NULL);
-	if (ret)
+	if (ret) {
 		dev_info(rtd->dev, "%s, set jack failed on %s (ret=%d)\n",
 			 __func__, component->name, ret);
-
 		return ret;
+	}
+
+	return 0;
 }
 
 static int mt8188_dumb_amp_init(struct snd_soc_pcm_runtime *rtd)
@@ -539,7 +543,7 @@ static int mt8188_dumb_amp_init(struct snd_soc_pcm_runtime *rtd)
 		return ret;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int mt8188_max98390_hw_params(struct snd_pcm_substream *substream,
@@ -612,7 +616,7 @@ static int mt8188_max98390_codec_init(struct snd_soc_pcm_runtime *rtd)
 		return ret;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int mt8188_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
@@ -660,7 +664,7 @@ static int mt8188_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
 		return ret;
 	}
 
-	return ret;
+	return 0;
 };
 
 static void mt8188_nau8825_codec_exit(struct snd_soc_pcm_runtime *rtd)
@@ -697,7 +701,7 @@ static int mt8188_nau8825_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 	}
 
-	return ret;
+	return 0;
 }
 
 static const struct snd_soc_ops mt8188_nau8825_ops = {