ALSA: pcm: Embed struct device
Like previous patches, at this time we embed the struct device into
PCM object. However, this needs a bit more caution: struct snd_pcm
doesn't own one device but two, for both playback and capture! Thus
not struct snd_pcm but struct snd_pcm_str object contains the device.
Along with this change, pcm->dev field is dropped for avoiding
confusion. It was meant to point to a non-standard parent. But,
since now we can touch each struct device directly, we can manipulate
the parent field easily there, too.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index b429b73..735bd0c 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -449,6 +449,7 @@
#endif
#endif
struct snd_kcontrol *chmap_kctl; /* channel-mapping controls */
+ struct device dev;
};
struct snd_pcm {
@@ -465,7 +466,6 @@
wait_queue_head_t open_wait;
void *private_data;
void (*private_free) (struct snd_pcm *pcm);
- struct device *dev; /* actual hw device this belongs to */
bool internal; /* pcm is for internal use only */
bool nonatomic; /* whole PCM operations are in non-atomic context */
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)