Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (252 commits)
  ASoC: Check progress when reporting periods from i.MX FIQ handler
  ASoC: Remove a unused variables from i.MX FIQ runtime data
  ALSA: hda - Add/fix ALC269 FSC and Quanta models
  ALSA: hda - Add ALC670 codec support
  OMAP4: PMIC: Add support for twl6030 codec
  ALSA: hda - remove unnecessary msleep on power state transitions
  usb/gadget/{f_audio,gmidi}.c: follow recent changes in audio.h
  ASoC: fsi: Modify over/under run error settlement
  ASoC: OMAP4: Add McPDM platform driver
  ASoC: OMAP4: Add support for McPDM
  ASoC: OMAP: data_type and sync_mode configurable in audio dma
  ALSA: hda - Add missing description in HD-Audio-Models.txt
  ALSA: add support for Macbook Air 2,1 internal speaker
  ALSA: usbaudio: consolidate header files
  ALSA: usbmixer: bail out early when parsing audio class v2 descriptors
  ALSA: usbaudio: implement basic set of class v2.0 parser
  ALSA: usbaudio: introduce new types for audio class v2
  ALSA: usbaudio: parse USB descriptors with structs
  ALSA: hda - enable snoop for Intel Cougar Point
  ALSA: hda - Remove identical definitions for macmini3 model
  ...

1 files changed, 49 insertions, 17 deletions

diff --git a/sound/soc/codecs/wm8727.c b/sound/soc/codecs/wm8727.c
index d8ffbd6..63a254e 100644
--- a/sound/soc/codecs/wm8727.c
+++ b/sound/soc/codecs/wm8727.c
@@ -44,23 +44,16 @@ struct snd_soc_dai wm8727_dai = {
 };
 EXPORT_SYMBOL_GPL(wm8727_dai);
 
+static struct snd_soc_codec *wm8727_codec;
+
 static int wm8727_soc_probe(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec;
 	int ret = 0;
 
-	codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (codec == NULL)
-		return -ENOMEM;
-	mutex_init(&codec->mutex);
-	codec->name = "WM8727";
-	codec->owner = THIS_MODULE;
-	codec->dai = &wm8727_dai;
-	codec->num_dai = 1;
-	socdev->card->codec = codec;
-	INIT_LIST_HEAD(&codec->dapm_widgets);
-	INIT_LIST_HEAD(&codec->dapm_paths);
+	BUG_ON(!wm8727_codec);
+
+	socdev->card->codec = wm8727_codec;
 
 	/* register pcms */
 	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
@@ -80,12 +73,9 @@ pcm_err:
 static int wm8727_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->card->codec;
 
-	if (codec == NULL)
-		return 0;
 	snd_soc_free_pcms(socdev);
-	kfree(codec);
+
 	return 0;
 }
 
@@ -98,13 +88,55 @@ EXPORT_SYMBOL_GPL(soc_codec_dev_wm8727);
 
 static __devinit int wm8727_platform_probe(struct platform_device *pdev)
 {
+	struct snd_soc_codec *codec;
+	int ret;
+
+	if (wm8727_codec) {
+		dev_err(&pdev->dev, "Another WM8727 is registered\n");
+		return -EBUSY;
+	}
+
+	codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (codec == NULL)
+		return -ENOMEM;
+	wm8727_codec = codec;
+
+	platform_set_drvdata(pdev, codec);
+
+	mutex_init(&codec->mutex);
+	codec->dev = &pdev->dev;
+	codec->name = "WM8727";
+	codec->owner = THIS_MODULE;
+	codec->dai = &wm8727_dai;
+	codec->num_dai = 1;
+	INIT_LIST_HEAD(&codec->dapm_widgets);
+	INIT_LIST_HEAD(&codec->dapm_paths);
+
 	wm8727_dai.dev = &pdev->dev;
-	return snd_soc_register_dai(&wm8727_dai);
+
+	ret = snd_soc_register_codec(codec);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Failed to register CODEC: %d\n", ret);
+		goto err;
+	}
+
+	ret = snd_soc_register_dai(&wm8727_dai);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Failed to register DAI: %d\n", ret);
+		goto err_codec;
+	}
+
+err_codec:
+	snd_soc_unregister_codec(codec);
+err:
+	kfree(codec);
+	return ret;
 }
 
 static int __devexit wm8727_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&wm8727_dai);
+	snd_soc_unregister_codec(platform_get_drvdata(pdev));
 	return 0;
 }