V4L/DVB (8776): radio: replace video_exclusive_open/release
Move the video_exclusive_open/release functionality into the driver itself.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c
index 6d820e2..5b93b47 100644
--- a/drivers/media/radio/radio-rtrack2.c
+++ b/drivers/media/radio/radio-rtrack2.c
@@ -52,6 +52,7 @@
struct rt_device
{
+ unsigned long in_use;
int port;
unsigned long curfreq;
int muted;
@@ -284,10 +285,21 @@
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,
