1 files changed, 22 insertions, 13 deletions

diff --git a/sound/oss/soundcard.c b/sound/oss/soundcard.c
index c62530943888..fde7c12fe5da 100644
--- a/sound/oss/soundcard.c
+++ b/sound/oss/soundcard.c
@@ -328,11 +328,11 @@ static int sound_mixer_ioctl(int mixdev, unsigned int cmd, void __user *arg)
         return mixer_devs[mixdev]->ioctl(mixdev, cmd, arg);
 }
 
-static int sound_ioctl(struct inode *inode, struct file *file,
-                       unsigned int cmd, unsigned long arg)
+static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
         int len = 0, dtype;
-        int dev = iminor(inode);
+        int dev = iminor(file->f_dentry->d_inode);
+        long ret = -EINVAL;
         void __user *p = (void __user *)arg;
 
         if (_SIOC_DIR(cmd) != _SIOC_NONE && _SIOC_DIR(cmd) != 0) {
@@ -353,6 +353,7 @@ static int sound_ioctl(struct inode *inode, struct file *file,
         if (cmd == OSS_GETVERSION)
                 return __put_user(SOUND_VERSION, (int __user *)p);
         
+        lock_kernel();
         if (_IOC_TYPE(cmd) == 'M' && num_mixers > 0 &&   /* Mixer ioctl */
             (dev & 0x0f) != SND_DEV_CTL) {              
                 dtype = dev & 0x0f;
@@ -360,24 +361,31 @@ static int sound_ioctl(struct inode *inode, struct file *file,
                 case SND_DEV_DSP:
                 case SND_DEV_DSP16:
                 case SND_DEV_AUDIO:
-                        return sound_mixer_ioctl(audio_devs[dev >> 4]->mixer_dev,
+                        ret = sound_mixer_ioctl(audio_devs[dev >> 4]->mixer_dev,
                                                  cmd, p);
-                        
+                        break;                  
                 default:
-                        return sound_mixer_ioctl(dev >> 4, cmd, p);
+                        ret = sound_mixer_ioctl(dev >> 4, cmd, p);
+                        break;
                 }
+                unlock_kernel();
+                return ret;
         }
+
         switch (dev & 0x0f) {
         case SND_DEV_CTL:
                 if (cmd == SOUND_MIXER_GETLEVELS)
-                        return get_mixer_levels(p);
-                if (cmd == SOUND_MIXER_SETLEVELS)
-                        return set_mixer_levels(p);
-                return sound_mixer_ioctl(dev >> 4, cmd, p);
+                        ret = get_mixer_levels(p);
+                else if (cmd == SOUND_MIXER_SETLEVELS)
+                        ret = set_mixer_levels(p);
+                else
+                        ret = sound_mixer_ioctl(dev >> 4, cmd, p);
+                break;
 
         case SND_DEV_SEQ:
         case SND_DEV_SEQ2:
-                return sequencer_ioctl(dev, file, cmd, p);
+                ret = sequencer_ioctl(dev, file, cmd, p);
+                break;
 
         case SND_DEV_DSP:
         case SND_DEV_DSP16:
@@ -390,7 +398,8 @@ static int sound_ioctl(struct inode *inode, struct file *file,
                 break;
 
         }
-        return -EINVAL;
+        unlock_kernel();
+        return ret;
 }
 
 static unsigned int sound_poll(struct file *file, poll_table * wait)
@@ -490,7 +499,7 @@ const struct file_operations oss_sound_fops = {
         .read           = sound_read,
         .write          = sound_write,
         .poll           = sound_poll,
-        .ioctl          = sound_ioctl,
+        .unlocked_ioctl = sound_ioctl,
         .mmap           = sound_mmap,
         .open           = sound_open,
         .release        = sound_release,