ASoC: au1x: Convert to devm_snd_soc_register_card

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/au1x/db1200.c b/sound/soc/au1x/db1200.c
index 58c3164..638ca0b 100644
--- a/sound/soc/au1x/db1200.c
+++ b/sound/soc/au1x/db1200.c
@@ -174,14 +174,7 @@
 
 	card = db1200_cards[pid->driver_data];
 	card->dev = &pdev->dev;
-	return snd_soc_register_card(card);
-}
-
-static int db1200_audio_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-	snd_soc_unregister_card(card);
-	return 0;
+	return devm_snd_soc_register_card(&pdev->dev, card);
 }
 
 static struct platform_driver db1200_audio_driver = {
@@ -191,7 +184,6 @@
 	},
 	.id_table	= db1200_pids,
 	.probe		= db1200_audio_probe,
-	.remove		= db1200_audio_remove,
 };
 
 module_platform_driver(db1200_audio_driver);