ALSA: hda - Implement unbind more safely

Now we have all pieces ready, and put them into places:
- add the hda_pcm refcount to azx_pcm_open() and azx_pcm_close(),
- call the most of cleanup code in hda_codec_reset() from the codec
  driver remove,
- call the same code also from the hda_codec object free.

Then the codec driver can be unbound more safely now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c
index 2d00417494e2..311896a23cd1 100644
--- a/sound/pci/hda/hda_bind.c
+++ b/sound/pci/hda/hda_bind.c
@@ -125,8 +125,7 @@ static int hda_codec_driver_remove(struct device *dev)
 
 	if (codec->patch_ops.free)
 		codec->patch_ops.free(codec);
-	codec->preset = NULL;
-	memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
+	snd_hda_codec_cleanup_for_unbind(codec);
 	module_put(dev->driver->owner);
 	return 0;
 }