1 files changed, 8 insertions, 0 deletions

diff --git a/sound/oss/vwsnd.c b/sound/oss/vwsnd.c
index 20b3b325aa80..99c94c48558c 100644
--- a/sound/oss/vwsnd.c
+++ b/sound/oss/vwsnd.c
@@ -2921,6 +2921,7 @@ static int vwsnd_audio_open(struct inode *inode, struct file *file)
 
         DBGE("(inode=0x%p, file=0x%p)\n", inode, file);
 
+        lock_kernel();
         INC_USE_COUNT;
         for (devc = vwsnd_dev_list; devc; devc = devc->next_dev)
                 if ((devc->audio_minor & ~0x0F) == (minor & ~0x0F))
@@ -2928,6 +2929,7 @@ static int vwsnd_audio_open(struct inode *inode, struct file *file)
 
         if (devc == NULL) {
                 DEC_USE_COUNT;
+                unlock_kernel();
                 return -ENODEV;
         }
 
@@ -2936,11 +2938,13 @@ static int vwsnd_audio_open(struct inode *inode, struct file *file)
                 mutex_unlock(&devc->open_mutex);
                 if (file->f_flags & O_NONBLOCK) {
                         DEC_USE_COUNT;
+                        unlock_kernel();
                         return -EBUSY;
                 }
                 interruptible_sleep_on(&devc->open_wait);
                 if (signal_pending(current)) {
                         DEC_USE_COUNT;
+                        unlock_kernel();
                         return -ERESTARTSYS;
                 }
                 mutex_lock(&devc->open_mutex);
@@ -2993,6 +2997,7 @@ static int vwsnd_audio_open(struct inode *inode, struct file *file)
 
         file->private_data = devc;
         DBGRV();
+        unlock_kernel();
         return 0;
 }
 
@@ -3062,15 +3067,18 @@ static int vwsnd_mixer_open(struct inode *inode, struct file *file)
         DBGEV("(inode=0x%p, file=0x%p)\n", inode, file);
 
         INC_USE_COUNT;
+        lock_kernel();
         for (devc = vwsnd_dev_list; devc; devc = devc->next_dev)
                 if (devc->mixer_minor == iminor(inode))
                         break;
 
         if (devc == NULL) {
                 DEC_USE_COUNT;
+                unlock_kernel();
                 return -ENODEV;
         }
         file->private_data = devc;
+        unlock_kernel();
         return 0;
 }