static long dv1394_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- struct video_card *video;
+ struct video_card *video = file_to_video_card(file);
unsigned long flags;
int ret = -EINVAL;
void __user *argp = (void __user *)arg;
DECLARE_WAITQUEUE(wait, current);
- lock_kernel();
- video = file_to_video_card(file);
-
/* serialize this to prevent multi-threaded mayhem */
if (file->f_flags & O_NONBLOCK) {
- if (!mutex_trylock(&video->mtx)) {
- unlock_kernel();
+ if (!mutex_trylock(&video->mtx))
return -EAGAIN;
- }
} else {
- if (mutex_lock_interruptible(&video->mtx)) {
- unlock_kernel();
+ if (mutex_lock_interruptible(&video->mtx))
return -ERESTARTSYS;
- }
}
switch(cmd)
out:
mutex_unlock(&video->mtx);
- unlock_kernel();
return ret;
}
MODULE_DEVICE_TABLE(ieee1394, dv1394_id_table);
static struct hpsb_protocol_driver dv1394_driver = {
- .name = "DV/1394 Driver",
+ .name = "dv1394",
.id_table = dv1394_id_table,
- .driver = {
- .name = "dv1394",
- .bus = &ieee1394_bus_type,
- },
};
{
int ret;
+ printk(KERN_WARNING
+ "WARNING: The dv1394 driver is unsupported and will be removed "
+ "from Linux soon. Use raw1394 instead.\n");
+
cdev_init(&dv1394_cdev, &dv1394_fops);
dv1394_cdev.owner = THIS_MODULE;
kobject_set_name(&dv1394_cdev.kobj, "dv1394");