V4L/DVB (8776): radio: replace video_exclusive_open/release

[linux-2.6-omap-h63xx.git] / drivers / media / radio / radio-gemtek.c

diff --git a/drivers/media/radio/radio-gemtek.c b/drivers/media/radio/radio-gemtek.c
index 0a0f956bb308387dc7c9334f150bef5b855448b9..cc90329026f2dcf00fcb9a0a431c26c14c0e0e19 100644 (file)
--- a/drivers/media/radio/radio-gemtek.c
+++ b/drivers/media/radio/radio-gemtek.c
@@ -57,6 +57,7 @@ static int shutdown   = 1;
 static int keepmuted   = 1;
 static int initmute    = 1;
 static int radio_nr    = -1;
+static unsigned long in_use;
 
 module_param(io, int, 0444);
 MODULE_PARM_DESC(io, "Force I/O port for the GemTek Radio card if automatic "
@@ -393,10 +394,21 @@ static struct v4l2_queryctrl radio_qctrl[] = {
        }
 };
 
+static int gemtek_exclusive_open(struct inode *inode, struct file *file)
+{
+       return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
+}
+
+static int gemtek_exclusive_release(struct inode *inode, struct file *file)
+{
+       clear_bit(0, &in_use);
+       return 0;
+}
+
 static const struct file_operations gemtek_fops = {
        .owner          = THIS_MODULE,
-       .open           = video_exclusive_open,
-       .release        = video_exclusive_release,
+       .open           = gemtek_exclusive_open,
+       .release        = gemtek_exclusive_release,
        .ioctl          = video_ioctl2,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = v4l_compat_ioctl32,