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

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

diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c
index 0876fecc5f275de8bf61bf1ab5d3713c90349c0f..eed14972a9400fe4ef6c95553105b68578d68fed 100644 (file)
--- a/drivers/media/radio/radio-terratec.c
+++ b/drivers/media/radio/radio-terratec.c
@@ -79,6 +79,7 @@ static spinlock_t lock;
 
 struct tt_device
 {
+       unsigned long in_use;
        int port;
        int curvol;
        unsigned long curfreq;
@@ -356,10 +357,21 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static struct tt_device terratec_unit;
 
+static int terratec_exclusive_open(struct inode *inode, struct file *file)
+{
+       return test_and_set_bit(0, &terratec_unit.in_use) ? -EBUSY : 0;
+}
+
+static int terratec_exclusive_release(struct inode *inode, struct file *file)
+{
+       clear_bit(0, &terratec_unit.in_use);
+       return 0;
+}
+
 static const struct file_operations terratec_fops = {
        .owner          = THIS_MODULE,
-       .open           = video_exclusive_open,
-       .release        = video_exclusive_release,
+       .open           = terratec_exclusive_open,
+       .release        = terratec_exclusive_release,
        .ioctl          = video_ioctl2,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = v4l_compat_ioctl32,