diff options
| -rw-r--r-- | drivers/media/video/cx88/cx88-video.c | 5 | ||||
| -rw-r--r-- | drivers/media/video/cx88/cx88.h | 1 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 61e03d4703f..be45955dff6 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -839,6 +839,8 @@ static int video_open(struct inode *inode, struct file *file) } unlock_kernel(); + atomic_inc(&core->users); + return 0; } @@ -926,7 +928,8 @@ static int video_release(struct inode *inode, struct file *file) file->private_data = NULL; kfree(fh); - cx88_call_i2c_clients (dev->core, TUNER_SET_STANDBY, NULL); + if(atomic_dec_and_test(&dev->core->users)) + cx88_call_i2c_clients (dev->core, TUNER_SET_STANDBY, NULL); return 0; } diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h index 6420fb7615b..dce7d36edb4 100644 --- a/drivers/media/video/cx88/cx88.h +++ b/drivers/media/video/cx88/cx88.h @@ -349,6 +349,7 @@ struct cx88_core { struct mutex lock; /* various v4l controls */ u32 freq; + atomic_t users; /* cx88-video needs to access cx8802 for hybrid tuner pll access. */ struct cx8802_dev *dvbdev; |