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Commit 68089abc authored by Jaroslav Kysela's avatar Jaroslav Kysela
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ALSA update 

  - reduced stack usage for functions using >1024+ bytes
  - fixed behaviour when OSS emulation is selected
  - fix in kmod support for sequencer
parent 8086afae
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Showing with 150 additions and 86 deletions
sound/core/control.c
View file @ 68089abc
......@@ -426,25 +426,28 @@ static int snd_ctl_elem_info(snd_ctl_file_t *ctl, snd_ctl_elem_info_t *_info)
static int snd_ctl_elem_read(snd_card_t *card, snd_ctl_elem_value_t *_control)
{
snd_ctl_elem_value_t control;
snd_ctl_elem_value_t *control;
snd_kcontrol_t *kctl;
int result, indirect;
if (copy_from_user(&control, _control, sizeof(control)))
control = kmalloc(sizeof(*control), GFP_KERNEL);
if (control == NULL)
return -ENOMEM;
if (copy_from_user(control, _control, sizeof(*control)))
return -EFAULT;
read_lock(&card->control_rwlock);
kctl = snd_ctl_find_id(card, &control.id);
kctl = snd_ctl_find_id(card, &control->id);
if (kctl == NULL) {
result = -ENOENT;
} else {
indirect = kctl->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT ? 1 : 0;
if (control.indirect != indirect) {
if (control->indirect != indirect) {
result = -EACCES;
} else {
if ((kctl->access & SNDRV_CTL_ELEM_ACCESS_READ) && kctl->get != NULL) {
result = kctl->get(kctl, &control);
result = kctl->get(kctl, control);
if (result >= 0)
control.id = kctl->id;
control->id = kctl->id;
} else
result = -EPERM;
}
......@@ -453,25 +456,29 @@ static int snd_ctl_elem_read(snd_card_t *card, snd_ctl_elem_value_t *_control)
if (result >= 0)
if (copy_to_user(_control, &control, sizeof(control)))
return -EFAULT;
kfree(control);
return result;
}
static int snd_ctl_elem_write(snd_ctl_file_t *file, snd_ctl_elem_value_t *_control)
{
snd_card_t *card = file->card;
snd_ctl_elem_value_t control;
snd_ctl_elem_value_t *control;
snd_kcontrol_t *kctl;
int result, indirect;
if (copy_from_user(&control, _control, sizeof(control)))
control = kmalloc(sizeof(*control), GFP_KERNEL);
if (control == NULL)
return -ENOMEM;
if (copy_from_user(control, _control, sizeof(*control)))
return -EFAULT;
read_lock(&card->control_rwlock);
kctl = snd_ctl_find_id(card, &control.id);
kctl = snd_ctl_find_id(card, &control->id);
if (kctl == NULL) {
result = -ENOENT;
} else {
indirect = kctl->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT ? 1 : 0;
if (control.indirect != indirect) {
if (control->indirect != indirect) {
result = -EACCES;
} else {
read_lock(&card->control_owner_lock);
......@@ -480,9 +487,9 @@ static int snd_ctl_elem_write(snd_ctl_file_t *file, snd_ctl_elem_value_t *_contr
(kctl->owner != NULL && kctl->owner != file)) {
result = -EPERM;
} else {
result = kctl->put(kctl, &control);
result = kctl->put(kctl, control);
if (result >= 0)
control.id = kctl->id;
control->id = kctl->id;
}
read_unlock(&card->control_owner_lock);
if (result > 0) {
......@@ -498,6 +505,7 @@ static int snd_ctl_elem_write(snd_ctl_file_t *file, snd_ctl_elem_value_t *_contr
if (result >= 0)
if (copy_to_user(_control, &control, sizeof(control)))
return -EFAULT;
kfree(control);
return result;
}
......
sound/core/hwdep.c
View file @ 68089abc
......@@ -327,7 +327,7 @@ static int snd_hwdep_dev_register(snd_device_t *device)
up(&register_mutex);
return err;
}
#ifdef SNDRV_OSS_INFO_DEV_AUDIO
#ifdef CONFIG_SND_OSSEMUL
hwdep->ossreg = 0;
if (hwdep->oss_type >= 0) {
if ((hwdep->oss_type == SNDRV_OSS_DEVICE_TYPE_DMFM) && (hwdep->device != 0)) {
......@@ -359,7 +359,7 @@ static int snd_hwdep_dev_unregister(snd_device_t *device)
up(&register_mutex);
return -EINVAL;
}
#ifdef SNDRV_OSS_INFO_DEV_AUDIO
#ifdef CONFIG_SND_OSSEMUL
if (hwdep->ossreg)
snd_unregister_oss_device(hwdep->oss_type, hwdep->card, hwdep->device);
#endif
......
sound/core/memory.c
View file @ 68089abc
......@@ -499,10 +499,10 @@ char *snd_kmalloc_strdup(const char *string, int flags)
int copy_to_user_fromio(void *dst, unsigned long src, size_t count)
{
#if defined(__i386_) || defined(CONFIG_SPARC32)
#if defined(__i386__) || defined(CONFIG_SPARC32)
return copy_to_user(dst, (const void*)src, count) ? -EFAULT : 0;
#else
char buf[1024];
char buf[256];
while (count) {
size_t c = count;
if (c > sizeof(buf))
......@@ -520,10 +520,10 @@ int copy_to_user_fromio(void *dst, unsigned long src, size_t count)
int copy_from_user_toio(unsigned long dst, const void *src, size_t count)
{
#if defined(__i386_) || defined(CONFIG_SPARC32)
#if defined(__i386__) || defined(CONFIG_SPARC32)
return copy_from_user((void*)dst, src, count) ? -EFAULT : 0;
#else
char buf[1024];
char buf[256];
while (count) {
size_t c = count;
if (c > sizeof(buf))
......
sound/core/oss/mixer_oss.c
View file @ 68089abc
This diff is collapsed.
sound/core/rawmidi.c
View file @ 68089abc
......@@ -1417,7 +1417,7 @@ static int snd_rawmidi_dev_register(snd_device_t *device)
up(&register_mutex);
return err;
}
#ifdef SNDRV_OSS_INFO_DEV_AUDIO
#ifdef CONFIG_SND_OSSEMUL
rmidi->ossreg = 0;
if (rmidi->device == snd_midi_map[rmidi->card->number]) {
if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI,
......@@ -1425,7 +1425,9 @@ static int snd_rawmidi_dev_register(snd_device_t *device)
snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 0);
} else {
rmidi->ossreg++;
#ifdef SNDRV_OSS_INFO_DEV_MIDI
snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIDI, rmidi->card->number, rmidi->name);
#endif
}
}
if (rmidi->device == snd_amidi_map[rmidi->card->number]) {
......@@ -1436,7 +1438,7 @@ static int snd_rawmidi_dev_register(snd_device_t *device)
rmidi->ossreg++;
}
}
#endif
#endif /* CONFIG_SND_OSSEMUL */
up(&register_mutex);
sprintf(name, "midi%d", rmidi->device);
entry = snd_info_create_card_entry(rmidi->card, name, rmidi->card->proc_root);
......@@ -1480,17 +1482,19 @@ static int snd_rawmidi_dev_unregister(snd_device_t *device)
snd_info_unregister(rmidi->proc_entry);
rmidi->proc_entry = NULL;
}
#ifdef SNDRV_OSS_INFO_DEV_AUDIO
#ifdef CONFIG_SND_OSSEMUL
if (rmidi->ossreg) {
if (rmidi->device == snd_midi_map[rmidi->card->number]) {
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI, rmidi->card, 0);
#ifdef SNDRV_OSS_INFO_DEV_MIDI
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIDI, rmidi->card->number);
#endif
}
if (rmidi->device == snd_amidi_map[rmidi->card->number])
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI, rmidi->card, 1);
rmidi->ossreg = 0;
}
#endif
#endif /* CONFIG_SND_OSSEMUL */
if (rmidi->ops && rmidi->ops->dev_unregister)
rmidi->ops->dev_unregister(rmidi);
snd_unregister_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device);
......
sound/core/seq/seq_clientmgr.c
View file @ 68089abc
......@@ -152,9 +152,11 @@ client_t *snd_seq_client_use_ptr(int clientid)
}
} else if (clientid >= 64 && clientid < 128) {
int card = (clientid - 64) / 8;
if (card < snd_ecards_limit && ! card_requested[card]) {
card_requested[card] = 1;
snd_request_card(card);
if (card < snd_ecards_limit) {
if (! card_requested[card]) {
card_requested[card] = 1;
snd_request_card(card);
}
snd_seq_device_load_drivers();
}
}
......
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