1 files changed, 15 insertions, 15 deletions

diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c
index 8a12621d8b3a..a8f626d99c5b 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");
@@ -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;
 }
 
@@ -824,9 +824,9 @@ au1550_ioctl_mixdev(struct file *file, unsigned int cmd, unsigned long arg)
         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;
 }
@@ -1255,7 +1255,7 @@ au1550_mmap(struct file *file, struct vm_area_struct *vma)
         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;
 }
 
@@ -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) {
@@ -1861,7 +1861,7 @@ au1550_open(struct inode *inode, struct file *file)
 out:
         mutex_unlock(&s->open_mutex);
 out2:
-        unlock_kernel();
+        mutex_unlock(&au1550_ac97_mutex);
         return ret;
 }
 
@@ -1870,12 +1870,12 @@ au1550_release(struct inode *inode, struct file *file)
 {
         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;
 }