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

[linux-2.6-omap-h63xx.git] / drivers / media / radio / radio-rtrack2.c

diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c
index 6d820e2481e7cc0e9e8b1d02a93f974289e35ce5..5b93b47be71410a667dd1580a069224f27c7ff4b 100644 (file)
--- a/drivers/media/radio/radio-rtrack2.c
+++ b/drivers/media/radio/radio-rtrack2.c
@@ -52,6 +52,7 @@ static spinlock_t lock;
 
 struct rt_device
 {
+       unsigned long in_use;
        int port;
        unsigned long curfreq;
        int muted;
@@ -284,10 +285,21 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static struct rt_device rtrack2_unit;
 
+static int rtrack2_exclusive_open(struct inode *inode, struct file *file)
+{
+       return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0;
+}
+
+static int rtrack2_exclusive_release(struct inode *inode, struct file *file)
+{
+       clear_bit(0, &rtrack2_unit.in_use);
+       return 0;
+}
+
 static const struct file_operations rtrack2_fops = {
        .owner          = THIS_MODULE,
-       .open           = video_exclusive_open,
-       .release        = video_exclusive_release,
+       .open           = rtrack2_exclusive_open,
+       .release        = rtrack2_exclusive_release,
        .ioctl          = video_ioctl2,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = v4l_compat_ioctl32,