diff options
Diffstat (limited to 'drivers/media/radio/radio-gemtek-pci.c')
| -rw-r--r-- | drivers/media/radio/radio-gemtek-pci.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c index 5cd7f032298..a7b9a5df4ca 100644 --- a/drivers/media/radio/radio-gemtek-pci.c +++ b/drivers/media/radio/radio-gemtek-pci.c @@ -100,9 +100,8 @@ struct gemtek_pci_card { u8 mute; }; -static const char rcsid[] = "$Id: radio-gemtek-pci.c,v 1.1 2001/07/23 08:08:16 ted Exp ted $"; - static int nr_radio = -1; +static unsigned long in_use; static inline u8 gemtek_pci_out( u16 value, u32 port ) { @@ -364,10 +363,21 @@ MODULE_DEVICE_TABLE( pci, gemtek_pci_id ); static int mx = 1; +static int gemtek_pci_exclusive_open(struct inode *inode, struct file *file) +{ + return test_and_set_bit(0, &in_use) ? -EBUSY : 0; +} + +static int gemtek_pci_exclusive_release(struct inode *inode, struct file *file) +{ + clear_bit(0, &in_use); + return 0; +} + static const struct file_operations gemtek_pci_fops = { .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, + .open = gemtek_pci_exclusive_open, + .release = gemtek_pci_exclusive_release, .ioctl = video_ioctl2, #ifdef CONFIG_COMPAT .compat_ioctl = v4l_compat_ioctl32, |