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| author | Takashi Iwai <tiwai@suse.de> | 2009-11-10 16:30:03 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-10 16:30:03 +0100 |
| commit | 3f225c07c7d0559f65b41250edd01a577fdba426 (patch) | |
| tree | 753a9b9a9063e23d44986d974aeb2bc1986d7df8 /sound/core | |
| parent | b7fe750fcceda4fa6bef399b0e2812562728ea82 (diff) | |
| parent | 25d27eded1f4fc728e64f443adc339b5229be5d7 (diff) | |
| download | linux-3f225c07c7d0559f65b41250edd01a577fdba426.tar.bz2 | |
Merge branch 'topic/ctl-pid-lock' into topic/core-change
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/control.c | 7 | ||||
| -rw-r--r-- | sound/core/pcm.c | 2 | ||||
| -rw-r--r-- | sound/core/rawmidi.c | 2 |
3 files changed, 5 insertions, 6 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index a8b7fabe645e..73dc10ac33f6 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -75,7 +75,7 @@ static int snd_ctl_open(struct inode *inode, struct file *file) ctl->card = card; ctl->prefer_pcm_subdevice = -1; ctl->prefer_rawmidi_subdevice = -1; - ctl->pid = current->pid; + ctl->pid = get_pid(task_pid(current)); file->private_data = ctl; write_lock_irqsave(&card->ctl_files_rwlock, flags); list_add_tail(&ctl->list, &card->ctl_files); @@ -125,6 +125,7 @@ static int snd_ctl_release(struct inode *inode, struct file *file) control->vd[idx].owner = NULL; up_write(&card->controls_rwsem); snd_ctl_empty_read_queue(ctl); + put_pid(ctl->pid); kfree(ctl); module_put(card->module); snd_card_file_remove(card, file); @@ -672,7 +673,7 @@ static int snd_ctl_elem_info(struct snd_ctl_file *ctl, info->access |= SNDRV_CTL_ELEM_ACCESS_LOCK; if (vd->owner == ctl) info->access |= SNDRV_CTL_ELEM_ACCESS_OWNER; - info->owner = vd->owner_pid; + info->owner = pid_vnr(vd->owner->pid); } else { info->owner = -1; } @@ -827,7 +828,6 @@ static int snd_ctl_elem_lock(struct snd_ctl_file *file, result = -EBUSY; else { vd->owner = file; - vd->owner_pid = current->pid; result = 0; } } @@ -858,7 +858,6 @@ static int snd_ctl_elem_unlock(struct snd_ctl_file *file, result = -EPERM; else { vd->owner = NULL; - vd->owner_pid = 0; result = 0; } } diff --git a/sound/core/pcm.c b/sound/core/pcm.c index c69c60b2a48a..8e2c7833614c 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -809,7 +809,7 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, card = pcm->card; read_lock(&card->ctl_files_rwlock); list_for_each_entry(kctl, &card->ctl_files, list) { - if (kctl->pid == current->pid) { + if (kctl->pid == task_pid(current)) { prefer_subdevice = kctl->prefer_pcm_subdevice; if (prefer_subdevice != -1) break; diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 70d6f25ba526..4e26563431c8 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -413,7 +413,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file) subdevice = -1; read_lock(&card->ctl_files_rwlock); list_for_each_entry(kctl, &card->ctl_files, list) { - if (kctl->pid == current->pid) { + if (kctl->pid == task_pid(current)) { subdevice = kctl->prefer_rawmidi_subdevice; if (subdevice != -1) break; |