diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/cx88/cx88-blackbird.c | 8 | ||||
| -rw-r--r-- | drivers/media/video/cx88/cx88.h | 1 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index ae77450f126..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; } diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h index 76207c2856b..f4240965be3 100644 --- a/drivers/media/video/cx88/cx88.h +++ b/drivers/media/video/cx88/cx88.h @@ -352,6 +352,7 @@ struct cx88_core { /* various v4l controls */ u32 freq; atomic_t users; + atomic_t mpeg_users; /* cx88-video needs to access cx8802 for hybrid tuner pll access. */ struct cx8802_dev *dvbdev; |