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Diffstat (limited to 'sound/oss/btaudio.c')
-rw-r--r--sound/oss/btaudio.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/sound/oss/btaudio.c b/sound/oss/btaudio.c
index 4007a5680ac..bfe3b534ef3 100644
--- a/sound/oss/btaudio.c
+++ b/sound/oss/btaudio.c
@@ -32,6 +32,8 @@
#include <linux/soundcard.h>
#include <linux/slab.h>
#include <linux/kdev_t.h>
+#include <linux/mutex.h>
+
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -108,7 +110,7 @@ struct btaudio {
/* locking */
int users;
- struct semaphore lock;
+ struct mutex lock;
/* risc instructions */
unsigned int risc_size;
@@ -440,7 +442,7 @@ static struct file_operations btaudio_mixer_fops = {
static int btaudio_dsp_open(struct inode *inode, struct file *file,
struct btaudio *bta, int analog)
{
- down(&bta->lock);
+ mutex_lock(&bta->lock);
if (bta->users)
goto busy;
bta->users++;
@@ -452,11 +454,11 @@ static int btaudio_dsp_open(struct inode *inode, struct file *file,
bta->read_count = 0;
bta->sampleshift = 0;
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
return 0;
busy:
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
return -EBUSY;
}
@@ -496,11 +498,11 @@ static int btaudio_dsp_release(struct inode *inode, struct file *file)
{
struct btaudio *bta = file->private_data;
- down(&bta->lock);
+ mutex_lock(&bta->lock);
if (bta->recording)
stop_recording(bta);
bta->users--;
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
return 0;
}
@@ -513,7 +515,7 @@ static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
DECLARE_WAITQUEUE(wait, current);
add_wait_queue(&bta->readq, &wait);
- down(&bta->lock);
+ mutex_lock(&bta->lock);
while (swcount > 0) {
if (0 == bta->read_count) {
if (!bta->recording) {
@@ -528,10 +530,10 @@ static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
ret = -EAGAIN;
break;
}
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
current->state = TASK_INTERRUPTIBLE;
schedule();
- down(&bta->lock);
+ mutex_lock(&bta->lock);
if(signal_pending(current)) {
if (0 == ret)
ret = -EINTR;
@@ -604,7 +606,7 @@ static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
if (bta->read_offset == bta->buf_size)
bta->read_offset = 0;
}
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
remove_wait_queue(&bta->readq, &wait);
current->state = TASK_RUNNING;
return ret;
@@ -651,10 +653,10 @@ static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
bta->decimation = 0;
}
if (bta->recording) {
- down(&bta->lock);
+ mutex_lock(&bta->lock);
stop_recording(bta);
start_recording(bta);
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
}
/* fall through */
case SOUND_PCM_READ_RATE:
@@ -716,10 +718,10 @@ static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
else
bta->bits = 16;
if (bta->recording) {
- down(&bta->lock);
+ mutex_lock(&bta->lock);
stop_recording(bta);
start_recording(bta);
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
}
}
if (debug)
@@ -736,9 +738,9 @@ static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
case SNDCTL_DSP_RESET:
if (bta->recording) {
- down(&bta->lock);
+ mutex_lock(&bta->lock);
stop_recording(bta);
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
}
return 0;
case SNDCTL_DSP_GETBLKSIZE:
@@ -941,7 +943,7 @@ static int __devinit btaudio_probe(struct pci_dev *pci_dev,
if (rate)
bta->rate = rate;
- init_MUTEX(&bta->lock);
+ mutex_init(&bta->lock);
init_waitqueue_head(&bta->readq);
if (-1 != latency) {