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Diffstat (limited to 'sound/oss/maestro3.c')
-rw-r--r--sound/oss/maestro3.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/sound/oss/maestro3.c b/sound/oss/maestro3.c
index f3dec70fcb9b..66044aff2586 100644
--- a/sound/oss/maestro3.c
+++ b/sound/oss/maestro3.c
@@ -144,6 +144,8 @@
#include <linux/spinlock.h>
#include <linux/ac97_codec.h>
#include <linux/wait.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/dma.h>
@@ -205,7 +207,7 @@ struct m3_state {
when irqhandler uses s->lock
and m3_assp_read uses card->lock ?
*/
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
mode_t open_mode;
@@ -2013,17 +2015,17 @@ static int m3_open(struct inode *inode, struct file *file)
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EWOULDBLOCK;
}
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
interruptible_sleep_on(&s->open_wait);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&c->lock, flags);
@@ -2047,7 +2049,7 @@ static int m3_open(struct inode *inode, struct file *file)
set_fmt(s, fmtm, fmts);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
spin_unlock_irqrestore(&c->lock, flags);
return nonseekable_open(inode, file);
}
@@ -2062,7 +2064,7 @@ static int m3_release(struct inode *inode, struct file *file)
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
spin_lock_irqsave(&card->lock, flags);
if (file->f_mode & FMODE_WRITE) {
@@ -2083,7 +2085,7 @@ static int m3_release(struct inode *inode, struct file *file)
s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
spin_unlock_irqrestore(&card->lock, flags);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
return 0;
@@ -2679,7 +2681,7 @@ static int __devinit m3_probe(struct pci_dev *pci_dev, const struct pci_device_i
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&(s->open_sem));
+ mutex_init(&(s->open_mutex));
s->magic = M3_STATE_MAGIC;
m3_assp_client_init(s);