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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-08-23 09:49:13 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2008-08-23 09:49:13 +0200 |
| commit | 550d99d78a4cb96963d19e5c234dffd6f973d55f (patch) | |
| tree | cd8057d0e8a70902ac9a9e65966ec4bc11981a34 /linux/drivers/media/radio/radio-sf16fmr2.c | |
| parent | ab19cb308e86c5aeb0531bbbf5bfb2c09d3423a3 (diff) | |
| download | mediapointer-dvb-s2-550d99d78a4cb96963d19e5c234dffd6f973d55f.tar.gz mediapointer-dvb-s2-550d99d78a4cb96963d19e5c234dffd6f973d55f.tar.bz2 | |
radio: replace video_exclusive_open/release
From: Hans Verkuil <hverkuil@xs4all.nl>
Move the video_exclusive_open/release functionality into the driver itself.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'linux/drivers/media/radio/radio-sf16fmr2.c')
| -rw-r--r-- | linux/drivers/media/radio/radio-sf16fmr2.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/linux/drivers/media/radio/radio-sf16fmr2.c b/linux/drivers/media/radio/radio-sf16fmr2.c index 7b7748561..4eb17f253 100644 --- a/linux/drivers/media/radio/radio-sf16fmr2.c +++ b/linux/drivers/media/radio/radio-sf16fmr2.c @@ -65,6 +65,7 @@ static struct v4l2_queryctrl radio_qctrl[] = { /* this should be static vars for module size */ struct fmr2_device { + unsigned long in_use; int port; int curvol; /* 0-15 */ int mute; @@ -401,10 +402,21 @@ static int vidioc_s_audio(struct file *file, void *priv, static struct fmr2_device fmr2_unit; +static int fmr2_exclusive_open(struct inode *inode, struct file *file) +{ + return test_and_set_bit(0, &fmr2_unit.in_use) ? -EBUSY : 0; +} + +static int fmr2_exclusive_release(struct inode *inode, struct file *file) +{ + clear_bit(0, &fmr2_unit.in_use); + return 0; +} + static const struct file_operations fmr2_fops = { .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, + .open = fmr2_exclusive_open, + .release = fmr2_exclusive_release, .ioctl = video_ioctl2, #ifdef CONFIG_COMPAT .compat_ioctl = v4l_compat_ioctl32, |