1 files changed, 10 insertions, 2 deletions

diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 078be631955..d3ae5b4dfca 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -1078,7 +1078,7 @@ static int mpeg_open(struct inode *inode, struct file *file)
                 }
         }
 
-        if (blackbird_initialize_codec(dev) < 0) {
+        if (!atomic_read(&dev->core->mpeg_users) && blackbird_initialize_codec(dev) < 0) {
                 if (drv)
                         drv->request_release(drv);
                 unlock_kernel();
@@ -1109,6 +1109,8 @@ static int mpeg_open(struct inode *inode, struct file *file)
                         fh->mpegq.field);
         unlock_kernel();
 
+        atomic_inc(&dev->core->mpeg_users);
+
         return 0;
 }
 
@@ -1118,7 +1120,7 @@ static int mpeg_release(struct inode *inode, struct file *file)
         struct cx8802_dev *dev = fh->dev;
         struct cx8802_driver *drv = NULL;
 
-        if (dev->mpeg_active)
+        if (dev->mpeg_active && atomic_read(&dev->core->mpeg_users) == 1)
                 blackbird_stop_codec(dev);
 
         cx8802_cancel_buffers(fh->dev);
@@ -1138,6 +1140,8 @@ static int mpeg_release(struct inode *inode, struct file *file)
         if (drv)
                 drv->request_release(drv);
 
+        atomic_dec(&dev->core->mpeg_users);
+
         return 0;
 }
 
@@ -1158,6 +1162,10 @@ static unsigned int
 mpeg_poll(struct file *file, struct poll_table_struct *wait)
 {
         struct cx8802_fh *fh = file->private_data;
+        struct cx8802_dev *dev = fh->dev;
+
+        if (!dev->mpeg_active)
+                blackbird_start_codec(file, fh);
 
         return videobuf_poll_stream(file, &fh->mpegq, wait);
 }