diff options
Diffstat (limited to 'linux/drivers/media/video/v4l2-dev.c')
| -rw-r--r-- | linux/drivers/media/video/v4l2-dev.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/linux/drivers/media/video/v4l2-dev.c b/linux/drivers/media/video/v4l2-dev.c index 279f436fe..594f2477f 100644 --- a/linux/drivers/media/video/v4l2-dev.c +++ b/linux/drivers/media/video/v4l2-dev.c @@ -150,7 +150,6 @@ static int video_open(struct inode *inode, struct file *file) if (minor >= VIDEO_NUM_DEVICES) return -ENODEV; - lock_kernel(); mutex_lock(&videodev_lock); vfl = video_device[minor]; if (vfl == NULL) { @@ -160,7 +159,6 @@ static int video_open(struct inode *inode, struct file *file) vfl = video_device[minor]; if (vfl == NULL) { mutex_unlock(&videodev_lock); - unlock_kernel(); return -ENODEV; } } @@ -178,7 +176,6 @@ static int video_open(struct inode *inode, struct file *file) } fops_put(old_fops); mutex_unlock(&videodev_lock); - unlock_kernel(); return err; } @@ -260,11 +257,13 @@ int video_register_device(struct video_device *vfd, int type, int nr) EXPORT_SYMBOL(video_register_device); /** - * video_register_device - register video4linux devices + * video_register_device_index - register video4linux devices * @vfd: video device structure we want to register * @type: type of device to register * @nr: which device number (0 == /dev/video0, 1 == /dev/video1, ... * -1 == first free) + * @index: stream number based on parent device; + * -1 if auto assign, requested number otherwise * * The registration code assigns minor numbers based on the type * requested. -ENFILE is returned in all the device slots for this @@ -317,7 +316,7 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, default: printk(KERN_ERR "%s called with unknown type: %d\n", __func__, type); - return -1; + return -EINVAL; } /* pick a minor number */ @@ -340,6 +339,7 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, } } video_device[i] = vfd; + vfd->vfl_type = type; vfd->minor = i; ret = get_index(vfd, index); @@ -356,10 +356,8 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, /* sysfs class */ memset(&vfd->dev, 0x00, sizeof(vfd->dev)); -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 18) vfd->dev.class = &video_class; vfd->dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); -#endif #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19) if (vfd->parent) vfd->dev.dev = vfd->parent; |