ASoC: pxa: Convert to devm_snd_soc_register_platform

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 1eb45dc..51e790d 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -232,13 +232,7 @@
 		mmp_pcm_hardware[SNDRV_PCM_STREAM_CAPTURE].period_bytes_max =
 						pdata->period_max_capture;
 	}
-	return snd_soc_register_platform(&pdev->dev, &mmp_soc_platform);
-}
-
-static int mmp_pcm_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_platform(&pdev->dev);
-	return 0;
+	return devm_snd_soc_register_platform(&pdev->dev, &mmp_soc_platform);
 }
 
 static struct platform_driver mmp_pcm_driver = {
@@ -247,7 +241,6 @@
 	},
 
 	.probe = mmp_pcm_probe,
-	.remove = mmp_pcm_remove,
 };
 
 module_platform_driver(mmp_pcm_driver);