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Diffstat (limited to 'sound/core/seq/oss/seq_oss_init.c')
-rw-r--r--sound/core/seq/oss/seq_oss_init.c88
1 files changed, 44 insertions, 44 deletions
diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index ca5a2ed4d7c..b9184d20c39 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -28,7 +28,10 @@
#include "seq_oss_timer.h"
#include "seq_oss_event.h"
#include <linux/init.h>
+#include <linux/export.h>
#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
/*
* common variables
@@ -58,6 +61,14 @@ static void free_devinfo(void *private);
#define call_ctl(type,rec) snd_seq_kernel_client_ctl(system_client, type, rec)
+/* call snd_seq_oss_midi_lookup_ports() asynchronously */
+static void async_call_lookup_ports(struct work_struct *work)
+{
+ snd_seq_oss_midi_lookup_ports(system_client);
+}
+
+static DECLARE_WORK(async_lookup_work, async_call_lookup_ports);
+
/*
* create sequencer client for OSS sequencer
*/
@@ -81,10 +92,6 @@ snd_seq_oss_create_client(void)
goto __error;
system_client = rc;
- debug_printk(("new client = %d\n", rc));
-
- /* look up midi devices */
- snd_seq_oss_midi_lookup_ports(system_client);
/* create annoucement receiver port */
memset(port, 0, sizeof(*port));
@@ -113,6 +120,9 @@ snd_seq_oss_create_client(void)
}
rc = 0;
+ /* look up midi devices */
+ schedule_work(&async_lookup_work);
+
__error:
kfree(port);
return rc;
@@ -158,6 +168,7 @@ receive_announce(struct snd_seq_event *ev, int direct, void *private, int atomic
int
snd_seq_oss_delete_client(void)
{
+ cancel_work_sync(&async_lookup_work);
if (system_client >= 0)
snd_seq_delete_kernel_client(system_client);
@@ -176,49 +187,48 @@ snd_seq_oss_open(struct file *file, int level)
int i, rc;
struct seq_oss_devinfo *dp;
- if ((dp = kzalloc(sizeof(*dp), GFP_KERNEL)) == NULL) {
- snd_printk(KERN_ERR "can't malloc device info\n");
+ dp = kzalloc(sizeof(*dp), GFP_KERNEL);
+ if (!dp) {
+ pr_err("ALSA: seq_oss: can't malloc device info\n");
return -ENOMEM;
}
- debug_printk(("oss_open: dp = %p\n", dp));
+
+ dp->cseq = system_client;
+ dp->port = -1;
+ dp->queue = -1;
for (i = 0; i < SNDRV_SEQ_OSS_MAX_CLIENTS; i++) {
if (client_table[i] == NULL)
break;
}
- if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) {
- snd_printk(KERN_ERR "too many applications\n");
- kfree(dp);
- return -ENOMEM;
- }
dp->index = i;
- dp->cseq = system_client;
- dp->port = -1;
- dp->queue = -1;
- dp->readq = NULL;
- dp->writeq = NULL;
+ if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) {
+ pr_err("ALSA: seq_oss: too many applications\n");
+ rc = -ENOMEM;
+ goto _error;
+ }
/* look up synth and midi devices */
snd_seq_oss_synth_setup(dp);
snd_seq_oss_midi_setup(dp);
if (dp->synth_opened == 0 && dp->max_mididev == 0) {
- /* snd_printk(KERN_ERR "no device found\n"); */
+ /* pr_err("ALSA: seq_oss: no device found\n"); */
rc = -ENODEV;
goto _error;
}
/* create port */
- debug_printk(("create new port\n"));
- if ((rc = create_port(dp)) < 0) {
- snd_printk(KERN_ERR "can't create port\n");
+ rc = create_port(dp);
+ if (rc < 0) {
+ pr_err("ALSA: seq_oss: can't create port\n");
goto _error;
}
/* allocate queue */
- debug_printk(("allocate queue\n"));
- if ((rc = alloc_seq_queue(dp)) < 0)
+ rc = alloc_seq_queue(dp);
+ if (rc < 0)
goto _error;
/* set address */
@@ -233,32 +243,30 @@ snd_seq_oss_open(struct file *file, int level)
dp->file_mode = translate_mode(file);
/* initialize read queue */
- debug_printk(("initialize read queue\n"));
if (is_read_mode(dp->file_mode)) {
- if ((dp->readq = snd_seq_oss_readq_new(dp, maxqlen)) == NULL) {
+ dp->readq = snd_seq_oss_readq_new(dp, maxqlen);
+ if (!dp->readq) {
rc = -ENOMEM;
goto _error;
}
}
/* initialize write queue */
- debug_printk(("initialize write queue\n"));
if (is_write_mode(dp->file_mode)) {
dp->writeq = snd_seq_oss_writeq_new(dp, maxqlen);
- if (dp->writeq == NULL) {
+ if (!dp->writeq) {
rc = -ENOMEM;
goto _error;
}
}
/* initialize timer */
- debug_printk(("initialize timer\n"));
- if ((dp->timer = snd_seq_oss_timer_new(dp)) == NULL) {
- snd_printk(KERN_ERR "can't alloc timer\n");
+ dp->timer = snd_seq_oss_timer_new(dp);
+ if (!dp->timer) {
+ pr_err("ALSA: seq_oss: can't alloc timer\n");
rc = -ENOMEM;
goto _error;
}
- debug_printk(("timer initialized\n"));
/* set private data pointer */
file->private_data = dp;
@@ -272,15 +280,13 @@ snd_seq_oss_open(struct file *file, int level)
client_table[dp->index] = dp;
num_clients++;
- debug_printk(("open done\n"));
return 0;
_error:
snd_seq_oss_synth_cleanup(dp);
snd_seq_oss_midi_cleanup(dp);
- i = dp->queue;
+ delete_seq_queue(dp->queue);
delete_port(dp);
- delete_seq_queue(i);
return rc;
}
@@ -332,7 +338,6 @@ create_port(struct seq_oss_devinfo *dp)
return rc;
dp->port = port.addr.port;
- debug_printk(("new port = %d\n", port.addr.port));
return 0;
}
@@ -343,10 +348,11 @@ create_port(struct seq_oss_devinfo *dp)
static int
delete_port(struct seq_oss_devinfo *dp)
{
- if (dp->port < 0)
+ if (dp->port < 0) {
+ kfree(dp);
return 0;
+ }
- debug_printk(("delete_port %i\n", dp->port));
return snd_seq_event_port_detach(dp->cseq, dp->port);
}
@@ -384,7 +390,7 @@ delete_seq_queue(int queue)
qinfo.queue = queue;
rc = call_ctl(SNDRV_SEQ_IOCTL_DELETE_QUEUE, &qinfo);
if (rc < 0)
- printk(KERN_ERR "seq-oss: unable to delete queue %d (%d)\n", queue, rc);
+ pr_err("ALSA: seq_oss: unable to delete queue %d (%d)\n", queue, rc);
return rc;
}
@@ -421,21 +427,16 @@ snd_seq_oss_release(struct seq_oss_devinfo *dp)
client_table[dp->index] = NULL;
num_clients--;
- debug_printk(("resetting..\n"));
snd_seq_oss_reset(dp);
- debug_printk(("cleaning up..\n"));
snd_seq_oss_synth_cleanup(dp);
snd_seq_oss_midi_cleanup(dp);
/* clear slot */
- debug_printk(("releasing resource..\n"));
queue = dp->queue;
if (dp->port >= 0)
delete_port(dp);
delete_seq_queue(queue);
-
- debug_printk(("release done\n"));
}
@@ -449,7 +450,6 @@ snd_seq_oss_drain_write(struct seq_oss_devinfo *dp)
return;
if (is_write_mode(dp->file_mode) && !is_nonblock_mode(dp->file_mode) &&
dp->writeq) {
- debug_printk(("syncing..\n"));
while (snd_seq_oss_writeq_sync(dp->writeq))
;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:21:21 +0000