diff options
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-dev.c | 8 | ||||
| -rw-r--r-- | include/media/v4l2-dev.h | 12 |
2 files changed, 12 insertions, 8 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index 0301fe426a43..1d0b2208e8fb 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -939,10 +939,14 @@ int __video_register_device(struct video_device *vdev, #endif vdev->minor = i + minor_offset; vdev->num = nr; - devnode_set(vdev); /* Should not happen since we thought this minor was free */ - WARN_ON(video_device[vdev->minor] != NULL); + if (WARN_ON(video_device[vdev->minor])) { + mutex_unlock(&videodev_lock); + printk(KERN_ERR "video_device not empty!\n"); + return -ENFILE; + } + devnode_set(vdev); vdev->index = get_index(vdev); video_device[vdev->minor] = vdev; mutex_unlock(&videodev_lock); diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 27634e8d2585..f60cf9cf3b9c 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -33,13 +33,13 @@ */ enum vfl_devnode_type { VFL_TYPE_GRABBER = 0, - VFL_TYPE_VBI = 1, - VFL_TYPE_RADIO = 2, - VFL_TYPE_SUBDEV = 3, - VFL_TYPE_SDR = 4, - VFL_TYPE_TOUCH = 5, + VFL_TYPE_VBI, + VFL_TYPE_RADIO, + VFL_TYPE_SUBDEV, + VFL_TYPE_SDR, + VFL_TYPE_TOUCH, + VFL_TYPE_MAX /* Shall be the last one */ }; -#define VFL_TYPE_MAX VFL_TYPE_TOUCH /** * enum vfl_direction - Identifies if a &struct video_device corresponds |