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-rw-r--r--sound/core/seq/oss/seq_oss.c24
-rw-r--r--sound/core/seq/oss/seq_oss_device.h7
-rw-r--r--sound/core/seq/oss/seq_oss_midi.c116
-rw-r--r--sound/core/seq/oss/seq_oss_readq.c10
-rw-r--r--sound/core/seq/oss/seq_oss_synth.c125
-rw-r--r--sound/core/seq/oss/seq_oss_writeq.c5
6 files changed, 99 insertions, 188 deletions
diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c
index 77c1214acd90..02d30d8b6c3a 100644
--- a/sound/core/seq/oss/seq_oss.c
+++ b/sound/core/seq/oss/seq_oss.c
@@ -117,18 +117,15 @@ static DEFINE_MUTEX(register_mutex);
static int
odev_open(struct inode *inode, struct file *file)
{
- int level, rc;
+ int level;
if (iminor(inode) == SNDRV_MINOR_OSS_MUSIC)
level = SNDRV_SEQ_OSS_MODE_MUSIC;
else
level = SNDRV_SEQ_OSS_MODE_SYNTH;
- mutex_lock(&register_mutex);
- rc = snd_seq_oss_open(file, level);
- mutex_unlock(&register_mutex);
-
- return rc;
+ guard(mutex)(&register_mutex);
+ return snd_seq_oss_open(file, level);
}
static int
@@ -140,10 +137,8 @@ odev_release(struct inode *inode, struct file *file)
if (!dp)
return 0;
- mutex_lock(&register_mutex);
+ guard(mutex)(&register_mutex);
snd_seq_oss_release(dp);
- mutex_unlock(&register_mutex);
-
return 0;
}
@@ -229,13 +224,12 @@ register_device(void)
{
int rc;
- mutex_lock(&register_mutex);
+ guard(mutex)(&register_mutex);
rc = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER,
NULL, 0,
&seq_oss_f_ops, NULL);
if (rc < 0) {
pr_err("ALSA: seq_oss: can't register device seq\n");
- mutex_unlock(&register_mutex);
return rc;
}
rc = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MUSIC,
@@ -244,22 +238,19 @@ register_device(void)
if (rc < 0) {
pr_err("ALSA: seq_oss: can't register device music\n");
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0);
- mutex_unlock(&register_mutex);
return rc;
}
- mutex_unlock(&register_mutex);
return 0;
}
static void
unregister_device(void)
{
- mutex_lock(&register_mutex);
+ guard(mutex)(&register_mutex);
if (snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MUSIC, NULL, 0) < 0)
pr_err("ALSA: seq_oss: error unregister device music\n");
if (snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0) < 0)
pr_err("ALSA: seq_oss: error unregister device seq\n");
- mutex_unlock(&register_mutex);
}
/*
@@ -273,12 +264,11 @@ static struct snd_info_entry *info_entry;
static void
info_read(struct snd_info_entry *entry, struct snd_info_buffer *buf)
{
- mutex_lock(&register_mutex);
+ guard(mutex)(&register_mutex);
snd_iprintf(buf, "OSS sequencer emulation version %s\n", SNDRV_SEQ_OSS_VERSION_STR);
snd_seq_oss_system_info_read(buf);
snd_seq_oss_synth_info_read(buf);
snd_seq_oss_midi_info_read(buf);
- mutex_unlock(&register_mutex);
}
diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h
index 6163a00bc8de..935cf3df0b30 100644
--- a/sound/core/seq/oss/seq_oss_device.h
+++ b/sound/core/seq/oss/seq_oss_device.h
@@ -137,12 +137,7 @@ snd_seq_oss_dispatch(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int a
static inline int
snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg)
{
- int err;
-
- snd_seq_client_ioctl_lock(dp->cseq);
- err = snd_seq_kernel_client_ctl(dp->cseq, type, arg);
- snd_seq_client_ioctl_unlock(dp->cseq);
- return err;
+ return snd_seq_kernel_client_ioctl(dp->cseq, type, arg);
}
/* fill the addresses in header */
diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
index f8e247d9e5c9..023e5d0a4351 100644
--- a/sound/core/seq/oss/seq_oss_midi.c
+++ b/sound/core/seq/oss/seq_oss_midi.c
@@ -40,6 +40,7 @@ struct seq_oss_midi {
struct mutex open_mutex;
};
+DEFINE_FREE(seq_oss_midi, struct seq_oss_midi *, if (!IS_ERR_OR_NULL(_T)) snd_use_lock_free(&(_T)->use_lock))
/*
* midi device table
@@ -90,13 +91,11 @@ static struct seq_oss_midi *
get_mdev(int dev)
{
struct seq_oss_midi *mdev;
- unsigned long flags;
- spin_lock_irqsave(&register_lock, flags);
+ guard(spinlock_irqsave)(&register_lock);
mdev = midi_devs[dev];
if (mdev)
snd_use_lock_use(&mdev->use_lock);
- spin_unlock_irqrestore(&register_lock, flags);
return mdev;
}
@@ -108,19 +107,16 @@ find_slot(int client, int port)
{
int i;
struct seq_oss_midi *mdev;
- unsigned long flags;
- spin_lock_irqsave(&register_lock, flags);
+ guard(spinlock_irqsave)(&register_lock);
for (i = 0; i < max_midi_devs; i++) {
mdev = midi_devs[i];
if (mdev && mdev->client == client && mdev->port == port) {
/* found! */
snd_use_lock_use(&mdev->use_lock);
- spin_unlock_irqrestore(&register_lock, flags);
return mdev;
}
}
- spin_unlock_irqrestore(&register_lock, flags);
return NULL;
}
@@ -135,7 +131,6 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo)
{
int i;
struct seq_oss_midi *mdev;
- unsigned long flags;
/* the port must include generic midi */
if (! (pinfo->type & SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC))
@@ -185,14 +180,13 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo)
/*
* look for en empty slot
*/
- spin_lock_irqsave(&register_lock, flags);
+ guard(spinlock_irqsave)(&register_lock);
for (i = 0; i < max_midi_devs; i++) {
if (midi_devs[i] == NULL)
break;
}
if (i >= max_midi_devs) {
if (max_midi_devs >= SNDRV_SEQ_OSS_MAX_MIDI_DEVS) {
- spin_unlock_irqrestore(&register_lock, flags);
snd_midi_event_free(mdev->coder);
kfree(mdev);
return -ENOMEM;
@@ -201,7 +195,6 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo)
}
mdev->seq_device = i;
midi_devs[mdev->seq_device] = mdev;
- spin_unlock_irqrestore(&register_lock, flags);
return 0;
}
@@ -213,26 +206,24 @@ int
snd_seq_oss_midi_check_exit_port(int client, int port)
{
struct seq_oss_midi *mdev;
- unsigned long flags;
int index;
mdev = find_slot(client, port);
if (mdev) {
- spin_lock_irqsave(&register_lock, flags);
- midi_devs[mdev->seq_device] = NULL;
- spin_unlock_irqrestore(&register_lock, flags);
+ scoped_guard(spinlock_irqsave, &register_lock) {
+ midi_devs[mdev->seq_device] = NULL;
+ }
snd_use_lock_free(&mdev->use_lock);
snd_use_lock_sync(&mdev->use_lock);
snd_midi_event_free(mdev->coder);
kfree(mdev);
}
- spin_lock_irqsave(&register_lock, flags);
+ guard(spinlock_irqsave)(&register_lock);
for (index = max_midi_devs - 1; index >= 0; index--) {
if (midi_devs[index])
break;
}
max_midi_devs = index + 1;
- spin_unlock_irqrestore(&register_lock, flags);
return 0;
}
@@ -245,9 +236,8 @@ snd_seq_oss_midi_clear_all(void)
{
int i;
struct seq_oss_midi *mdev;
- unsigned long flags;
- spin_lock_irqsave(&register_lock, flags);
+ guard(spinlock_irqsave)(&register_lock);
for (i = 0; i < max_midi_devs; i++) {
mdev = midi_devs[i];
if (mdev) {
@@ -257,7 +247,6 @@ snd_seq_oss_midi_clear_all(void)
}
}
max_midi_devs = 0;
- spin_unlock_irqrestore(&register_lock, flags);
}
@@ -267,9 +256,8 @@ snd_seq_oss_midi_clear_all(void)
void
snd_seq_oss_midi_setup(struct seq_oss_devinfo *dp)
{
- spin_lock_irq(&register_lock);
+ guard(spinlock_irq)(&register_lock);
dp->max_mididev = max_midi_devs;
- spin_unlock_irq(&register_lock);
}
/*
@@ -317,20 +305,17 @@ int
snd_seq_oss_midi_open(struct seq_oss_devinfo *dp, int dev, int fmode)
{
int perm;
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
struct snd_seq_port_subscribe subs;
- int err;
mdev = get_mididev(dp, dev);
if (!mdev)
return -ENODEV;
- mutex_lock(&mdev->open_mutex);
+ guard(mutex)(&mdev->open_mutex);
/* already used? */
- if (mdev->opened && mdev->devinfo != dp) {
- err = -EBUSY;
- goto unlock;
- }
+ if (mdev->opened && mdev->devinfo != dp)
+ return -EBUSY;
perm = 0;
if (is_write_mode(fmode))
@@ -338,16 +323,12 @@ snd_seq_oss_midi_open(struct seq_oss_devinfo *dp, int dev, int fmode)
if (is_read_mode(fmode))
perm |= PERM_READ;
perm &= mdev->flags;
- if (perm == 0) {
- err = -ENXIO;
- goto unlock;
- }
+ if (perm == 0)
+ return -ENXIO;
/* already opened? */
- if ((mdev->opened & perm) == perm) {
- err = 0;
- goto unlock;
- }
+ if ((mdev->opened & perm) == perm)
+ return 0;
perm &= ~mdev->opened;
@@ -370,18 +351,11 @@ snd_seq_oss_midi_open(struct seq_oss_devinfo *dp, int dev, int fmode)
mdev->opened |= PERM_READ;
}
- if (! mdev->opened) {
- err = -ENXIO;
- goto unlock;
- }
+ if (!mdev->opened)
+ return -ENXIO;
mdev->devinfo = dp;
- err = 0;
-
- unlock:
- mutex_unlock(&mdev->open_mutex);
- snd_use_lock_free(&mdev->use_lock);
- return err;
+ return 0;
}
/*
@@ -390,15 +364,15 @@ snd_seq_oss_midi_open(struct seq_oss_devinfo *dp, int dev, int fmode)
int
snd_seq_oss_midi_close(struct seq_oss_devinfo *dp, int dev)
{
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
struct snd_seq_port_subscribe subs;
mdev = get_mididev(dp, dev);
if (!mdev)
return -ENODEV;
- mutex_lock(&mdev->open_mutex);
+ guard(mutex)(&mdev->open_mutex);
if (!mdev->opened || mdev->devinfo != dp)
- goto unlock;
+ return 0;
memset(&subs, 0, sizeof(subs));
if (mdev->opened & PERM_WRITE) {
@@ -416,10 +390,6 @@ snd_seq_oss_midi_close(struct seq_oss_devinfo *dp, int dev)
mdev->opened = 0;
mdev->devinfo = NULL;
-
- unlock:
- mutex_unlock(&mdev->open_mutex);
- snd_use_lock_free(&mdev->use_lock);
return 0;
}
@@ -429,7 +399,7 @@ snd_seq_oss_midi_close(struct seq_oss_devinfo *dp, int dev)
int
snd_seq_oss_midi_filemode(struct seq_oss_devinfo *dp, int dev)
{
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
int mode;
mdev = get_mididev(dp, dev);
@@ -442,7 +412,6 @@ snd_seq_oss_midi_filemode(struct seq_oss_devinfo *dp, int dev)
if (mdev->opened & PERM_READ)
mode |= SNDRV_SEQ_OSS_FILE_READ;
- snd_use_lock_free(&mdev->use_lock);
return mode;
}
@@ -453,15 +422,13 @@ snd_seq_oss_midi_filemode(struct seq_oss_devinfo *dp, int dev)
void
snd_seq_oss_midi_reset(struct seq_oss_devinfo *dp, int dev)
{
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
mdev = get_mididev(dp, dev);
if (!mdev)
return;
- if (! mdev->opened) {
- snd_use_lock_free(&mdev->use_lock);
+ if (!mdev->opened)
return;
- }
if (mdev->opened & PERM_WRITE) {
struct snd_seq_event ev;
@@ -492,7 +459,6 @@ snd_seq_oss_midi_reset(struct seq_oss_devinfo *dp, int dev)
}
}
// snd_seq_oss_midi_close(dp, dev);
- snd_use_lock_free(&mdev->use_lock);
}
@@ -502,14 +468,13 @@ snd_seq_oss_midi_reset(struct seq_oss_devinfo *dp, int dev)
void
snd_seq_oss_midi_get_addr(struct seq_oss_devinfo *dp, int dev, struct snd_seq_addr *addr)
{
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
mdev = get_mididev(dp, dev);
if (!mdev)
return;
addr->client = mdev->client;
addr->port = mdev->port;
- snd_use_lock_free(&mdev->use_lock);
}
@@ -520,26 +485,20 @@ int
snd_seq_oss_midi_input(struct snd_seq_event *ev, int direct, void *private_data)
{
struct seq_oss_devinfo *dp = (struct seq_oss_devinfo *)private_data;
- struct seq_oss_midi *mdev;
- int rc;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
if (dp->readq == NULL)
return 0;
mdev = find_slot(ev->source.client, ev->source.port);
if (!mdev)
return 0;
- if (! (mdev->opened & PERM_READ)) {
- snd_use_lock_free(&mdev->use_lock);
+ if (!(mdev->opened & PERM_READ))
return 0;
- }
if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_MUSIC)
- rc = send_synth_event(dp, ev, mdev->seq_device);
+ return send_synth_event(dp, ev, mdev->seq_device);
else
- rc = send_midi_event(dp, ev, mdev);
-
- snd_use_lock_free(&mdev->use_lock);
- return rc;
+ return send_midi_event(dp, ev, mdev);
}
/*
@@ -636,17 +595,15 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq
int
snd_seq_oss_midi_putc(struct seq_oss_devinfo *dp, int dev, unsigned char c, struct snd_seq_event *ev)
{
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
mdev = get_mididev(dp, dev);
if (!mdev)
return -ENODEV;
if (snd_midi_event_encode_byte(mdev->coder, c, ev)) {
snd_seq_oss_fill_addr(dp, ev, mdev->client, mdev->port);
- snd_use_lock_free(&mdev->use_lock);
return 0;
}
- snd_use_lock_free(&mdev->use_lock);
return -EINVAL;
}
@@ -656,7 +613,7 @@ snd_seq_oss_midi_putc(struct seq_oss_devinfo *dp, int dev, unsigned char c, stru
int
snd_seq_oss_midi_make_info(struct seq_oss_devinfo *dp, int dev, struct midi_info *inf)
{
- struct seq_oss_midi *mdev;
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
mdev = get_mididev(dp, dev);
if (!mdev)
@@ -665,7 +622,6 @@ snd_seq_oss_midi_make_info(struct seq_oss_devinfo *dp, int dev, struct midi_info
inf->dev_type = 0; /* FIXME: ?? */
inf->capabilities = 0; /* FIXME: ?? */
strscpy(inf->name, mdev->name, sizeof(inf->name));
- snd_use_lock_free(&mdev->use_lock);
return 0;
}
@@ -692,10 +648,11 @@ void
snd_seq_oss_midi_info_read(struct snd_info_buffer *buf)
{
int i;
- struct seq_oss_midi *mdev;
snd_iprintf(buf, "\nNumber of MIDI devices: %d\n", max_midi_devs);
for (i = 0; i < max_midi_devs; i++) {
+ struct seq_oss_midi *mdev __free(seq_oss_midi) = NULL;
+
snd_iprintf(buf, "\nmidi %d: ", i);
mdev = get_mdev(i);
if (mdev == NULL) {
@@ -707,7 +664,6 @@ snd_seq_oss_midi_info_read(struct snd_info_buffer *buf)
snd_iprintf(buf, " capability %s / opened %s\n",
capmode_str(mdev->flags),
capmode_str(mdev->opened));
- snd_use_lock_free(&mdev->use_lock);
}
}
#endif /* CONFIG_SND_PROC_FS */
diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c
index f0db5d3dcba4..bbaf72e70b35 100644
--- a/sound/core/seq/oss/seq_oss_readq.c
+++ b/sound/core/seq/oss/seq_oss_readq.c
@@ -140,13 +140,9 @@ int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev,
int
snd_seq_oss_readq_put_event(struct seq_oss_readq *q, union evrec *ev)
{
- unsigned long flags;
-
- spin_lock_irqsave(&q->lock, flags);
- if (q->qlen >= q->maxlen - 1) {
- spin_unlock_irqrestore(&q->lock, flags);
+ guard(spinlock_irqsave)(&q->lock);
+ if (q->qlen >= q->maxlen - 1)
return -ENOMEM;
- }
memcpy(&q->q[q->tail], ev, sizeof(*ev));
q->tail = (q->tail + 1) % q->maxlen;
@@ -155,8 +151,6 @@ snd_seq_oss_readq_put_event(struct seq_oss_readq *q, union evrec *ev)
/* wake up sleeper */
wake_up(&q->midi_sleep);
- spin_unlock_irqrestore(&q->lock, flags);
-
return 0;
}
diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c
index 9de47e098b29..8c4e5913c7e6 100644
--- a/sound/core/seq/oss/seq_oss_synth.c
+++ b/sound/core/seq/oss/seq_oss_synth.c
@@ -44,6 +44,7 @@ struct seq_oss_synth {
snd_use_lock_t use_lock;
};
+DEFINE_FREE(seq_oss_synth, struct seq_oss_synth *, if (!IS_ERR_OR_NULL(_T)) snd_use_lock_free(&(_T)->use_lock))
/*
* device table
@@ -85,7 +86,6 @@ snd_seq_oss_synth_probe(struct device *_dev)
int i;
struct seq_oss_synth *rec;
struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
- unsigned long flags;
rec = kzalloc(sizeof(*rec), GFP_KERNEL);
if (!rec)
@@ -103,23 +103,22 @@ snd_seq_oss_synth_probe(struct device *_dev)
strscpy(rec->name, dev->name, sizeof(rec->name));
/* registration */
- spin_lock_irqsave(&register_lock, flags);
- for (i = 0; i < max_synth_devs; i++) {
- if (synth_devs[i] == NULL)
- break;
- }
- if (i >= max_synth_devs) {
- if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) {
- spin_unlock_irqrestore(&register_lock, flags);
- pr_err("ALSA: seq_oss: no more synth slot\n");
- kfree(rec);
- return -ENOMEM;
+ scoped_guard(spinlock_irqsave, &register_lock) {
+ for (i = 0; i < max_synth_devs; i++) {
+ if (synth_devs[i] == NULL)
+ break;
}
- max_synth_devs++;
+ if (i >= max_synth_devs) {
+ if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) {
+ pr_err("ALSA: seq_oss: no more synth slot\n");
+ kfree(rec);
+ return -ENOMEM;
+ }
+ max_synth_devs++;
+ }
+ rec->seq_device = i;
+ synth_devs[i] = rec;
}
- rec->seq_device = i;
- synth_devs[i] = rec;
- spin_unlock_irqrestore(&register_lock, flags);
dev->driver_data = rec;
#ifdef SNDRV_OSS_INFO_DEV_SYNTH
if (i < SNDRV_CARDS)
@@ -135,27 +134,25 @@ snd_seq_oss_synth_remove(struct device *_dev)
struct snd_seq_device *dev = to_seq_dev(_dev);
int index;
struct seq_oss_synth *rec = dev->driver_data;
- unsigned long flags;
- spin_lock_irqsave(&register_lock, flags);
- for (index = 0; index < max_synth_devs; index++) {
- if (synth_devs[index] == rec)
- break;
- }
- if (index >= max_synth_devs) {
- spin_unlock_irqrestore(&register_lock, flags);
- pr_err("ALSA: seq_oss: can't unregister synth\n");
- return -EINVAL;
- }
- synth_devs[index] = NULL;
- if (index == max_synth_devs - 1) {
- for (index--; index >= 0; index--) {
- if (synth_devs[index])
+ scoped_guard(spinlock_irqsave, &register_lock) {
+ for (index = 0; index < max_synth_devs; index++) {
+ if (synth_devs[index] == rec)
break;
}
- max_synth_devs = index + 1;
+ if (index >= max_synth_devs) {
+ pr_err("ALSA: seq_oss: can't unregister synth\n");
+ return -EINVAL;
+ }
+ synth_devs[index] = NULL;
+ if (index == max_synth_devs - 1) {
+ for (index--; index >= 0; index--) {
+ if (synth_devs[index])
+ break;
+ }
+ max_synth_devs = index + 1;
+ }
}
- spin_unlock_irqrestore(&register_lock, flags);
#ifdef SNDRV_OSS_INFO_DEV_SYNTH
if (rec->seq_device < SNDRV_CARDS)
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_SYNTH, rec->seq_device);
@@ -174,13 +171,11 @@ static struct seq_oss_synth *
get_sdev(int dev)
{
struct seq_oss_synth *rec;
- unsigned long flags;
- spin_lock_irqsave(&register_lock, flags);
+ guard(spinlock_irqsave)(&register_lock);
rec = synth_devs[dev];
if (rec)
snd_use_lock_use(&rec->use_lock);
- spin_unlock_irqrestore(&register_lock, flags);
return rec;
}
@@ -193,20 +188,18 @@ void
snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp)
{
int i;
- struct seq_oss_synth *rec;
struct seq_oss_synthinfo *info;
dp->max_synthdev = max_synth_devs;
dp->synth_opened = 0;
memset(dp->synths, 0, sizeof(dp->synths));
for (i = 0; i < dp->max_synthdev; i++) {
- rec = get_sdev(i);
+ struct seq_oss_synth *rec __free(seq_oss_synth) = get_sdev(i);
+
if (rec == NULL)
continue;
- if (rec->oper.open == NULL || rec->oper.close == NULL) {
- snd_use_lock_free(&rec->use_lock);
+ if (rec->oper.open == NULL || rec->oper.close == NULL)
continue;
- }
info = &dp->synths[i];
info->arg.app_index = dp->port;
info->arg.file_mode = dp->file_mode;
@@ -216,13 +209,10 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp)
else
info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS;
info->opened = 0;
- if (!try_module_get(rec->oper.owner)) {
- snd_use_lock_free(&rec->use_lock);
+ if (!try_module_get(rec->oper.owner))
continue;
- }
if (rec->oper.open(&info->arg, rec->private_data) < 0) {
module_put(rec->oper.owner);
- snd_use_lock_free(&rec->use_lock);
continue;
}
info->nr_voices = rec->nr_voices;
@@ -231,7 +221,6 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp)
if (!info->ch) {
rec->oper.close(&info->arg);
module_put(rec->oper.owner);
- snd_use_lock_free(&rec->use_lock);
continue;
}
reset_channels(info);
@@ -239,7 +228,6 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp)
info->opened++;
rec->opened++;
dp->synth_opened++;
- snd_use_lock_free(&rec->use_lock);
}
}
@@ -286,7 +274,6 @@ void
snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp)
{
int i;
- struct seq_oss_synth *rec;
struct seq_oss_synthinfo *info;
if (snd_BUG_ON(dp->max_synthdev > SNDRV_SEQ_OSS_MAX_SYNTH_DEVS))
@@ -301,7 +288,9 @@ snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp)
midi_synth_dev.opened--;
}
} else {
- rec = get_sdev(i);
+ struct seq_oss_synth *rec __free(seq_oss_synth) =
+ get_sdev(i);
+
if (rec == NULL)
continue;
if (rec->opened > 0) {
@@ -309,7 +298,6 @@ snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp)
module_put(rec->oper.owner);
rec->opened = 0;
}
- snd_use_lock_free(&rec->use_lock);
}
kfree(info->ch);
info->ch = NULL;
@@ -380,7 +368,7 @@ reset_channels(struct seq_oss_synthinfo *info)
void
snd_seq_oss_synth_reset(struct seq_oss_devinfo *dp, int dev)
{
- struct seq_oss_synth *rec;
+ struct seq_oss_synth *rec __free(seq_oss_synth) = NULL;
struct seq_oss_synthinfo *info;
info = get_synthinfo_nospec(dp, dev);
@@ -416,7 +404,6 @@ snd_seq_oss_synth_reset(struct seq_oss_devinfo *dp, int dev)
ev.type = SNDRV_SEQ_EVENT_RESET;
snd_seq_oss_dispatch(dp, &ev, 0, 0);
}
- snd_use_lock_free(&rec->use_lock);
}
@@ -428,9 +415,8 @@ int
snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt,
const char __user *buf, int p, int c)
{
- struct seq_oss_synth *rec;
+ struct seq_oss_synth *rec __free(seq_oss_synth) = NULL;
struct seq_oss_synthinfo *info;
- int rc;
info = get_synthinfo_nospec(dp, dev);
if (!info)
@@ -443,11 +429,9 @@ snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt,
return -ENXIO;
if (rec->oper.load_patch == NULL)
- rc = -ENXIO;
+ return -ENXIO;
else
- rc = rec->oper.load_patch(&info->arg, fmt, buf, p, c);
- snd_use_lock_free(&rec->use_lock);
- return rc;
+ return rec->oper.load_patch(&info->arg, fmt, buf, p, c);
}
/*
@@ -456,13 +440,11 @@ snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt,
struct seq_oss_synthinfo *
snd_seq_oss_synth_info(struct seq_oss_devinfo *dp, int dev)
{
- struct seq_oss_synth *rec;
+ struct seq_oss_synth *rec __free(seq_oss_synth) = NULL;
rec = get_synthdev(dp, dev);
- if (rec) {
- snd_use_lock_free(&rec->use_lock);
+ if (rec)
return get_synthinfo_nospec(dp, dev);
- }
return NULL;
}
@@ -513,9 +495,8 @@ snd_seq_oss_synth_addr(struct seq_oss_devinfo *dp, int dev, struct snd_seq_event
int
snd_seq_oss_synth_ioctl(struct seq_oss_devinfo *dp, int dev, unsigned int cmd, unsigned long addr)
{
- struct seq_oss_synth *rec;
+ struct seq_oss_synth *rec __free(seq_oss_synth) = NULL;
struct seq_oss_synthinfo *info;
- int rc;
info = get_synthinfo_nospec(dp, dev);
if (!info || info->is_midi)
@@ -524,11 +505,9 @@ snd_seq_oss_synth_ioctl(struct seq_oss_devinfo *dp, int dev, unsigned int cmd, u
if (!rec)
return -ENXIO;
if (rec->oper.ioctl == NULL)
- rc = -ENXIO;
+ return -ENXIO;
else
- rc = rec->oper.ioctl(&info->arg, cmd, addr);
- snd_use_lock_free(&rec->use_lock);
- return rc;
+ return rec->oper.ioctl(&info->arg, cmd, addr);
}
@@ -555,7 +534,6 @@ snd_seq_oss_synth_raw_event(struct seq_oss_devinfo *dp, int dev, unsigned char *
int
snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_info *inf)
{
- struct seq_oss_synth *rec;
struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev);
if (!info)
@@ -571,7 +549,9 @@ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_in
inf->device = dev;
strscpy(inf->name, minf.name, sizeof(inf->name));
} else {
- rec = get_synthdev(dp, dev);
+ struct seq_oss_synth *rec __free(seq_oss_synth) =
+ get_synthdev(dp, dev);
+
if (!rec)
return -ENXIO;
inf->synth_type = rec->synth_type;
@@ -579,7 +559,6 @@ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_in
inf->nr_voices = rec->nr_voices;
inf->device = dev;
strscpy(inf->name, rec->name, sizeof(inf->name));
- snd_use_lock_free(&rec->use_lock);
}
return 0;
}
@@ -593,10 +572,11 @@ void
snd_seq_oss_synth_info_read(struct snd_info_buffer *buf)
{
int i;
- struct seq_oss_synth *rec;
snd_iprintf(buf, "\nNumber of synth devices: %d\n", max_synth_devs);
for (i = 0; i < max_synth_devs; i++) {
+ struct seq_oss_synth *rec __free(seq_oss_synth) = NULL;
+
snd_iprintf(buf, "\nsynth %d: ", i);
rec = get_sdev(i);
if (rec == NULL) {
@@ -610,7 +590,6 @@ snd_seq_oss_synth_info_read(struct snd_info_buffer *buf)
snd_iprintf(buf, " capabilities : ioctl %s / load_patch %s\n",
str_enabled_disabled((long)rec->oper.ioctl),
str_enabled_disabled((long)rec->oper.load_patch));
- snd_use_lock_free(&rec->use_lock);
}
}
#endif /* CONFIG_SND_PROC_FS */
diff --git a/sound/core/seq/oss/seq_oss_writeq.c b/sound/core/seq/oss/seq_oss_writeq.c
index 3e3209ce53b1..a93ff8315b8e 100644
--- a/sound/core/seq/oss/seq_oss_writeq.c
+++ b/sound/core/seq/oss/seq_oss_writeq.c
@@ -122,13 +122,10 @@ snd_seq_oss_writeq_sync(struct seq_oss_writeq *q)
void
snd_seq_oss_writeq_wakeup(struct seq_oss_writeq *q, abstime_t time)
{
- unsigned long flags;
-
- spin_lock_irqsave(&q->sync_lock, flags);
+ guard(spinlock_irqsave)(&q->sync_lock);
q->sync_time = time;
q->sync_event_put = 0;
wake_up(&q->sync_sleep);
- spin_unlock_irqrestore(&q->sync_lock, flags);
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-10-07 18:37:45 +0300