summaryrefslogtreecommitdiffstats
path: root/drivers/media/radio/radio-sf16fmi.c
diff options
context:
space:
mode:
authorHans Verkuil <hverkuil@xs4all.nl>2008-08-23 09:49:13 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 13:36:53 +0200
commit3ca685aae04960eaa8b2c97baf384996c20cf9ac (patch)
treea4d99449643380c62b11a05d93f81b6b8a2f82d7 /drivers/media/radio/radio-sf16fmi.c
parentV4L/DVB (8774): cx18: Have CX23418 release buffers at end of capture. (diff)
downloadlinux-3ca685aae04960eaa8b2c97baf384996c20cf9ac.tar.xz
linux-3ca685aae04960eaa8b2c97baf384996c20cf9ac.zip
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>
Diffstat (limited to 'drivers/media/radio/radio-sf16fmi.c')
-rw-r--r--drivers/media/radio/radio-sf16fmi.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c
index 0d478f54a907..55f8334513f3 100644
--- a/drivers/media/radio/radio-sf16fmi.c
+++ b/drivers/media/radio/radio-sf16fmi.c
@@ -45,6 +45,7 @@ static struct v4l2_queryctrl radio_qctrl[] = {
struct fmi_device
{
+ unsigned long in_use;
int port;
int curvol; /* 1 or 0 */
unsigned long curfreq; /* freq in kHz */
@@ -284,10 +285,21 @@ static int vidioc_s_audio(struct file *file, void *priv,
static struct fmi_device fmi_unit;
+static int fmi_exclusive_open(struct inode *inode, struct file *file)
+{
+ return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0;
+}
+
+static int fmi_exclusive_release(struct inode *inode, struct file *file)
+{
+ clear_bit(0, &fmi_unit.in_use);
+ return 0;
+}
+
static const struct file_operations fmi_fops = {
.owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
+ .open = fmi_exclusive_open,
+ .release = fmi_exclusive_release,
.ioctl = video_ioctl2,
#ifdef CONFIG_COMPAT
.compat_ioctl = v4l_compat_ioctl32,