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Diffstat (limited to 'sound/core/pcm.c')
-rw-r--r--sound/core/pcm.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 3da6a38c2d0..5d7eb123b99 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -777,8 +777,9 @@ static void snd_pcm_tick_timer_func(unsigned long data)
snd_pcm_tick_elapsed(substream);
}
-int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
- struct snd_pcm_substream **rsubstream)
+int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
+ struct file *file,
+ struct snd_pcm_substream **rsubstream)
{
struct snd_pcm_str * pstr;
struct snd_pcm_substream *substream;
@@ -793,7 +794,7 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
*rsubstream = NULL;
snd_assert(pcm != NULL, return -ENXIO);
pstr = &pcm->streams[stream];
- if (pstr->substream == NULL)
+ if (pstr->substream == NULL || pstr->substream_count == 0)
return -ENODEV;
card = pcm->card;
@@ -807,8 +808,6 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
}
up_read(&card->controls_rwsem);
- if (pstr->substream_count == 0)
- return -ENODEV;
switch (stream) {
case SNDRV_PCM_STREAM_PLAYBACK:
if (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX) {
@@ -874,12 +873,13 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
substream->runtime = runtime;
substream->private_data = pcm->private_data;
+ substream->ffile = file;
pstr->substream_opened++;
*rsubstream = substream;
return 0;
}
-void snd_pcm_release_substream(struct snd_pcm_substream *substream)
+void snd_pcm_detach_substream(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
substream->file = NULL;
@@ -1111,8 +1111,6 @@ EXPORT_SYMBOL(snd_pcm_link_rwlock);
EXPORT_SYMBOL(snd_pcm_suspend);
EXPORT_SYMBOL(snd_pcm_suspend_all);
#endif
-EXPORT_SYMBOL(snd_pcm_kernel_playback_ioctl);
-EXPORT_SYMBOL(snd_pcm_kernel_capture_ioctl);
EXPORT_SYMBOL(snd_pcm_kernel_ioctl);
EXPORT_SYMBOL(snd_pcm_mmap_data);
#if SNDRV_PCM_INFO_MMAP_IOMEM