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

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

diff --git a/drivers/media/radio/radio-zoltrix.c b/drivers/media/radio/radio-zoltrix.c
index 51d57ed3b3e12a5db805f09cb93acc9c39560e7c..4d76e710194b47414d9a5d9d80e64809e9469504 100644 (file)
--- a/drivers/media/radio/radio-zoltrix.c
+++ b/drivers/media/radio/radio-zoltrix.c
@@ -69,6 +69,7 @@ static int io = CONFIG_RADIO_ZOLTRIX_PORT;
 static int radio_nr = -1;
 
 struct zol_device {
+       unsigned long in_use;
        int port;
        int curvol;
        unsigned long curfreq;
@@ -396,11 +397,22 @@ static int vidioc_s_audio(struct file *file, void *priv,
 
 static struct zol_device zoltrix_unit;
 
+static int zoltrix_exclusive_open(struct inode *inode, struct file *file)
+{
+       return test_and_set_bit(0, &zoltrix_unit.in_use) ? -EBUSY : 0;
+}
+
+static int zoltrix_exclusive_release(struct inode *inode, struct file *file)
+{
+       clear_bit(0, &zoltrix_unit.in_use);
+       return 0;
+}
+
 static const struct file_operations zoltrix_fops =
 {
        .owner          = THIS_MODULE,
-       .open           = video_exclusive_open,
-       .release        = video_exclusive_release,
+       .open           = zoltrix_exclusive_open,
+       .release        = zoltrix_exclusive_release,
        .ioctl          = video_ioctl2,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = v4l_compat_ioctl32,