diff options
Diffstat (limited to 'sound/core/pcm_native.c')
-rw-r--r-- | sound/core/pcm_native.c | 49 |
1 files changed, 10 insertions, 39 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 439f047929e1..0224c70414f5 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1992,35 +1992,9 @@ int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream) return 0; } -static void snd_pcm_add_file(struct snd_pcm_str *str, - struct snd_pcm_file *pcm_file) -{ - pcm_file->next = str->files; - str->files = pcm_file; -} - -static void snd_pcm_remove_file(struct snd_pcm_str *str, - struct snd_pcm_file *pcm_file) -{ - struct snd_pcm_file * pcm_file1; - if (str->files == pcm_file) { - str->files = pcm_file->next; - } else { - pcm_file1 = str->files; - while (pcm_file1 && pcm_file1->next != pcm_file) - pcm_file1 = pcm_file1->next; - if (pcm_file1 != NULL) - pcm_file1->next = pcm_file->next; - } -} - static void pcm_release_private(struct snd_pcm_substream *substream) { - struct snd_pcm_file *pcm_file = substream->file; - snd_pcm_unlink(substream); - snd_pcm_remove_file(substream->pstr, pcm_file); - kfree(pcm_file); } void snd_pcm_release_substream(struct snd_pcm_substream *substream) @@ -2060,7 +2034,6 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, return 0; } - substream->no_mmap_ctrl = 0; err = snd_pcm_hw_constraints_init(substream); if (err < 0) { snd_printd("snd_pcm_hw_constraints_init failed\n"); @@ -2105,19 +2078,16 @@ static int snd_pcm_open_file(struct file *file, if (err < 0) return err; - if (substream->ref_count > 1) - pcm_file = substream->file; - else { - pcm_file = kzalloc(sizeof(*pcm_file), GFP_KERNEL); - if (pcm_file == NULL) { - snd_pcm_release_substream(substream); - return -ENOMEM; - } + pcm_file = kzalloc(sizeof(*pcm_file), GFP_KERNEL); + if (pcm_file == NULL) { + snd_pcm_release_substream(substream); + return -ENOMEM; + } + pcm_file->substream = substream; + if (substream->ref_count == 1) { str = substream->pstr; substream->file = pcm_file; substream->pcm_release = pcm_release_private; - pcm_file->substream = substream; - snd_pcm_add_file(str, pcm_file); } file->private_data = pcm_file; *rpcm_file = pcm_file; @@ -2209,6 +2179,7 @@ static int snd_pcm_release(struct inode *inode, struct file *file) fasync_helper(-1, file, 0, &substream->runtime->fasync); mutex_lock(&pcm->open_mutex); snd_pcm_release_substream(substream); + kfree(pcm_file); mutex_unlock(&pcm->open_mutex); wake_up(&pcm->open_wait); module_put(pcm->card->module); @@ -3270,11 +3241,11 @@ static int snd_pcm_mmap(struct file *file, struct vm_area_struct *area) offset = area->vm_pgoff << PAGE_SHIFT; switch (offset) { case SNDRV_PCM_MMAP_OFFSET_STATUS: - if (substream->no_mmap_ctrl) + if (pcm_file->no_compat_mmap) return -ENXIO; return snd_pcm_mmap_status(substream, file, area); case SNDRV_PCM_MMAP_OFFSET_CONTROL: - if (substream->no_mmap_ctrl) + if (pcm_file->no_compat_mmap) return -ENXIO; return snd_pcm_mmap_control(substream, file, area); default: |