diff options
author | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 11:17:52 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 11:17:52 +0900 |
commit | 4cb40f795af36b3deb743f6ccf6c3fd542c61c8d (patch) | |
tree | db3d7519932549bf528f5b8e4cb8350356cd544d /drivers/media/radio/radio-gemtek.c | |
parent | 79ed2a9216dd3cc35c4f2c5dbaddadb195af83ac (diff) | |
parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/kernel-parameters.txt
arch/sh/include/asm/elf.h
Diffstat (limited to 'drivers/media/radio/radio-gemtek.c')
-rw-r--r-- | drivers/media/radio/radio-gemtek.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/media/radio/radio-gemtek.c b/drivers/media/radio/radio-gemtek.c index 0a0f956bb30..d131a5d3812 100644 --- a/drivers/media/radio/radio-gemtek.c +++ b/drivers/media/radio/radio-gemtek.c @@ -57,6 +57,7 @@ static int shutdown = 1; static int keepmuted = 1; static int initmute = 1; static int radio_nr = -1; +static unsigned long in_use; module_param(io, int, 0444); MODULE_PARM_DESC(io, "Force I/O port for the GemTek Radio card if automatic " @@ -393,10 +394,21 @@ static struct v4l2_queryctrl radio_qctrl[] = { } }; +static int gemtek_exclusive_open(struct inode *inode, struct file *file) +{ + return test_and_set_bit(0, &in_use) ? -EBUSY : 0; +} + +static int gemtek_exclusive_release(struct inode *inode, struct file *file) +{ + clear_bit(0, &in_use); + return 0; +} + static const struct file_operations gemtek_fops = { .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, + .open = gemtek_exclusive_open, + .release = gemtek_exclusive_release, .ioctl = video_ioctl2, #ifdef CONFIG_COMPAT .compat_ioctl = v4l_compat_ioctl32, @@ -447,8 +459,7 @@ static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v) static int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct video_device *dev = video_devdata(file); - struct gemtek_device *rt = dev->priv; + struct gemtek_device *rt = video_drvdata(file); gemtek_setfreq(rt, f->frequency); @@ -458,8 +469,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct video_device *dev = video_devdata(file); - struct gemtek_device *rt = dev->priv; + struct gemtek_device *rt = video_drvdata(file); f->type = V4L2_TUNER_RADIO; f->frequency = rt->lastfreq; @@ -483,8 +493,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct video_device *dev = video_devdata(file); - struct gemtek_device *rt = dev->priv; + struct gemtek_device *rt = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -503,8 +512,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv, static int vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct video_device *dev = video_devdata(file); - struct gemtek_device *rt = dev->priv; + struct gemtek_device *rt = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -569,9 +577,10 @@ static const struct v4l2_ioctl_ops gemtek_ioctl_ops = { }; static struct video_device gemtek_radio = { - .name = "GemTek Radio card", - .fops = &gemtek_fops, - .ioctl_ops = &gemtek_ioctl_ops, + .name = "GemTek Radio card", + .fops = &gemtek_fops, + .ioctl_ops = &gemtek_ioctl_ops, + .release = video_device_release_empty, }; /* @@ -610,7 +619,7 @@ static int __init gemtek_init(void) return -EINVAL; } - gemtek_radio.priv = &gemtek_unit; + video_set_drvdata(&gemtek_radio, &gemtek_unit); if (video_register_device(&gemtek_radio, VFL_TYPE_RADIO, radio_nr) < 0) { release_region(io, 1); |