ALSA: hda - Clear pcm pointer assigned to hda_pcm at device removal

We leave the pcm field of struct hda_pcm at removal of each device, so
far.  This hasn't been a problem since unbinding the codec driver
isn't supposed to happen and another route via snd_hda_codec_reset()
clears all the once.  However, for a proper unbind implementation, we
need to care about it.

This patch does the thing above properly:

- Include struct hda_pcm pointer instead of struct hda_pcm_stream
  pointers in struct azx_dev.  This allows us to point the hda_pcm
  object at dev_free callback.

- Introduce to_hda_pcm_stream() macro for better readability.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h
index e4f46a21698a..94c1a4719f7f 100644
--- a/sound/pci/hda/hda_controller.h
+++ b/sound/pci/hda/hda_controller.h
@@ -283,7 +283,7 @@ struct azx_pcm {
 	struct azx *chip;
 	struct snd_pcm *pcm;
 	struct hda_codec *codec;
-	struct hda_pcm_stream *hinfo[2];
+	struct hda_pcm *info;
 	struct list_head list;
 };