summaryrefslogtreecommitdiffstats
path: root/sound/oss/au1550_ac97.c
diff options
context:
space:
mode:
authorLiam Girdwood <lrg@slimlogic.co.uk>2010-11-03 14:11:27 +0000
committerLiam Girdwood <lrg@slimlogic.co.uk>2010-11-03 14:11:27 +0000
commit8f987768eb99631374f4ab0bb19cd062baf1397d (patch)
treeb89aa5c207f7ba6a688f45657424b937f17ceb8a /sound/oss/au1550_ac97.c
parent63f7526f26f0a9291ac3f7a986aa18ebfb61ec19 (diff)
parentc8ddb2713c624f432fa5fe3c7ecffcdda46ea0d4 (diff)
downloadop-kernel-dev-8f987768eb99631374f4ab0bb19cd062baf1397d.zip
op-kernel-dev-8f987768eb99631374f4ab0bb19cd062baf1397d.tar.gz
Merge commit 'v2.6.37-rc1' into for-2.6.37
Diffstat (limited to 'sound/oss/au1550_ac97.c')
-rw-r--r--sound/oss/au1550_ac97.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c
index c6f2621..a8f626d 100644
--- a/sound/oss/au1550_ac97.c
+++ b/sound/oss/au1550_ac97.c
@@ -43,7 +43,6 @@
#include <linux/sound.h>
#include <linux/slab.h>
#include <linux/soundcard.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
@@ -77,6 +76,7 @@
/* Boot options
* 0 = no VRA, 1 = use VRA if codec supports it
*/
+static DEFINE_MUTEX(au1550_ac97_mutex);
static int vra = 1;
module_param(vra, bool, 0);
MODULE_PARM_DESC(vra, "if 1 use VRA if codec supports it");
@@ -171,7 +171,7 @@ au1550_delay(int msec)
static u16
rdcodec(struct ac97_codec *codec, u8 addr)
{
- struct au1550_state *s = (struct au1550_state *)codec->private_data;
+ struct au1550_state *s = codec->private_data;
unsigned long flags;
u32 cmd, val;
u16 data;
@@ -239,7 +239,7 @@ rdcodec(struct ac97_codec *codec, u8 addr)
static void
wrcodec(struct ac97_codec *codec, u8 addr, u16 data)
{
- struct au1550_state *s = (struct au1550_state *)codec->private_data;
+ struct au1550_state *s = codec->private_data;
unsigned long flags;
u32 cmd, val;
int i;
@@ -798,9 +798,9 @@ au1550_llseek(struct file *file, loff_t offset, int origin)
static int
au1550_open_mixdev(struct inode *inode, struct file *file)
{
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
file->private_data = &au1550_state;
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
return 0;
}
@@ -820,13 +820,13 @@ mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd,
static long
au1550_ioctl_mixdev(struct file *file, unsigned int cmd, unsigned long arg)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
struct ac97_codec *codec = s->codec;
int ret;
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
ret = mixdev_ioctl(codec, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
return ret;
}
@@ -1031,7 +1031,7 @@ copy_dmabuf_user(struct dmabuf *db, char* userbuf, int count, int to_user)
static ssize_t
au1550_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
struct dmabuf *db = &s->dma_adc;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret;
@@ -1111,7 +1111,7 @@ out2:
static ssize_t
au1550_write(struct file *file, const char *buffer, size_t count, loff_t * ppos)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
struct dmabuf *db = &s->dma_dac;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret = 0;
@@ -1211,7 +1211,7 @@ out2:
static unsigned int
au1550_poll(struct file *file, struct poll_table_struct *wait)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
unsigned long flags;
unsigned int mask = 0;
@@ -1250,12 +1250,12 @@ au1550_poll(struct file *file, struct poll_table_struct *wait)
static int
au1550_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
struct dmabuf *db;
unsigned long size;
int ret = 0;
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
mutex_lock(&s->sem);
if (vma->vm_flags & VM_WRITE)
db = &s->dma_dac;
@@ -1283,7 +1283,7 @@ au1550_mmap(struct file *file, struct vm_area_struct *vma)
db->mapped = 1;
out:
mutex_unlock(&s->sem);
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
return ret;
}
@@ -1342,7 +1342,7 @@ dma_count_done(struct dmabuf *db)
static int
au1550_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
unsigned long flags;
audio_buf_info abinfo;
count_info cinfo;
@@ -1781,9 +1781,9 @@ au1550_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret;
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
ret = au1550_ioctl(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
return ret;
}
@@ -1804,7 +1804,7 @@ au1550_open(struct inode *inode, struct file *file)
#endif
file->private_data = s;
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
/* wait for device to become free */
mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
@@ -1861,21 +1861,21 @@ au1550_open(struct inode *inode, struct file *file)
out:
mutex_unlock(&s->open_mutex);
out2:
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
return ret;
}
static int
au1550_release(struct inode *inode, struct file *file)
{
- struct au1550_state *s = (struct au1550_state *)file->private_data;
+ struct au1550_state *s = file->private_data;
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
if (file->f_mode & FMODE_WRITE) {
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
drain_dac(s, file->f_flags & O_NONBLOCK);
- lock_kernel();
+ mutex_lock(&au1550_ac97_mutex);
}
mutex_lock(&s->open_mutex);
@@ -1892,7 +1892,7 @@ au1550_release(struct inode *inode, struct file *file)
s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE));
mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
- unlock_kernel();
+ mutex_unlock(&au1550_ac97_mutex);
return 0;
}
OpenPOWER on IntegriCloud