ASoC: ac97: Merge soc_ac97_dev_{un,}register()/soc_{un,}register_ac97_codec()

soc_{un,}register_ac97_codec() is just a simple wrapper around
soc_ac97_dev_{un,}register(). There is no need to split these up into two
different sets of functions.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-ac97.c

@@ -42,34 +42,7 @@ static struct snd_ac97_bus soc_ac97_bus = {
 	.ops = NULL, /* Gets initialized in snd_soc_set_ac97_ops() */
 };
 
-/* unregister ac97 codec */
-static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
-{
-	if (codec->ac97->dev.bus)
-		device_del(&codec->ac97->dev);
-	return 0;
-}
-
 /* register ac97 codec to bus */
-static int soc_ac97_dev_register(struct snd_soc_codec *codec)
-{
-	int err;
-
-	codec->ac97->dev.bus = &ac97_bus_type;
-	codec->ac97->dev.parent = codec->component.card->dev;
-
-	dev_set_name(&codec->ac97->dev, "%d-%d:%s",
-		     codec->component.card->snd_card->number, 0,
-		     codec->component.name);
-	err = device_add(&codec->ac97->dev);
-	if (err < 0) {
-		dev_err(codec->dev, "ASoC: Can't register ac97 bus\n");
-		codec->ac97->dev.bus = NULL;
-		return err;
-	}
-	return 0;
-}
-
 static int soc_register_ac97_codec(struct snd_soc_codec *codec,
 	struct snd_soc_dai *codec_dai)
 {
@@ -78,7 +51,9 @@ static int soc_register_ac97_codec(struct snd_soc_codec *codec,
 	/* Only instantiate AC97 if not already done by the adaptor
 	 * for the generic AC97 subsystem.
 	 */
-	if (codec_dai->driver->ac97_control && !codec->ac97_registered) {
+	if (!codec_dai->driver->ac97_control || codec->ac97_registered)
+		return 0;
+
 	/*
 	 * It is possible that the AC97 device is already registered to
 	 * the device subsystem. This happens when the device is created
@@ -90,24 +65,29 @@ static int soc_register_ac97_codec(struct snd_soc_codec *codec,
 	if (!codec->ac97_created)
 		return 0;
 
-		ret = soc_ac97_dev_register(codec);
+	codec->ac97->dev.bus = &ac97_bus_type;
+	codec->ac97->dev.parent = codec->component.card->dev;
+
+	dev_set_name(&codec->ac97->dev, "%d-%d:%s",
+		     codec->component.card->snd_card->number, 0,
+		     codec->component.name);
+	ret = device_add(&codec->ac97->dev);
 	if (ret < 0) {
-			dev_err(codec->dev,
-				"ASoC: AC97 device register failed: %d\n", ret);
+		dev_err(codec->dev, "ASoC: AC97 device register failed: %d\n",
+			ret);
 		return ret;
 	}
-
 	codec->ac97_registered = 1;
-	}
+
 	return 0;
 }
 
 static void soc_unregister_ac97_codec(struct snd_soc_codec *codec)
 {
-	if (codec->ac97_registered) {
-		soc_ac97_dev_unregister(codec);
+	if (!codec->ac97_registered)
+		return;
+	device_del(&codec->ac97->dev);
 	codec->ac97_registered = 0;
-	}
 }
 
 static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)