drivers/media/common/videobuf2/videobuf2-v4l2.c:678: undefined reference to `video_devdata'

From: kbuild test robot
Date: Tue Feb 20 2018 - 15:37:28 EST

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Hi Hans,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: af3e79d29555b97dd096e2f8e36a0f50213808a8
commit: 7952be9b6ece3d3c4d61f9811d7e5a984580064a media: drivers/media/common/videobuf2: rename from videobuf
date: 4 weeks ago
config: x86_64-randconfig-u0-02210105 (attached as .config)
compiler: gcc-5 (Debian 5.5.0-3) 5.4.1 20171010
reproduce:
git checkout 7952be9b6ece3d3c4d61f9811d7e5a984580064a
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_poll':
>> drivers/media/common/videobuf2/videobuf2-v4l2.c:678: undefined reference to `video_devdata'
>> drivers/media/common/videobuf2/videobuf2-v4l2.c:685: undefined reference to `v4l2_event_pending'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_reqbufs':
drivers/media/common/videobuf2/videobuf2-v4l2.c:714: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_create_bufs':
drivers/media/common/videobuf2/videobuf2-v4l2.c:733: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_prepare_buf':
drivers/media/common/videobuf2/videobuf2-v4l2.c:759: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_querybuf':
drivers/media/common/videobuf2/videobuf2-v4l2.c:769: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_qbuf':
drivers/media/common/videobuf2/videobuf2-v4l2.c:778: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o:drivers/media/common/videobuf2/videobuf2-v4l2.c:788: more undefined references to `video_devdata' follow
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `_vb2_fop_release':
>> drivers/media/common/videobuf2/videobuf2-v4l2.c:848: undefined reference to `v4l2_fh_release'

vim +678 drivers/media/common/videobuf2/videobuf2-v4l2.c

3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 675
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 676 unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait)
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 677 {
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 @678 struct video_device *vfd = video_devdata(file);
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 679 unsigned long req_events = poll_requested_events(wait);
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 680 unsigned int res = 0;
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 681
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 682 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) {
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 683 struct v4l2_fh *fh = file->private_data;
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 684
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 @685 if (v4l2_event_pending(fh))
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 686 res = POLLPRI;
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 687 else if (req_events & POLLPRI)
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 688 poll_wait(file, &fh->wait, wait);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 689 }
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 690
49d8ab9f drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-11-03 691 return res | vb2_core_poll(q, file, wait);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 692 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 693 EXPORT_SYMBOL_GPL(vb2_poll);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 694
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 695 /*
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 696 * The following functions are not part of the vb2 core API, but are helper
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 697 * functions that plug into struct v4l2_ioctl_ops, struct v4l2_file_operations
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 698 * and struct vb2_ops.
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 699 * They contain boilerplate code that most if not all drivers have to do
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 700 * and so they simplify the driver code.
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 701 */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 702
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 703 /* The queue is busy if there is a owner and you are not that owner. */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 704 static inline bool vb2_queue_is_busy(struct video_device *vdev, struct file *file)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 705 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 706 return vdev->queue->owner && vdev->queue->owner != file->private_data;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 707 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 708
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 709 /* vb2 ioctl helpers */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 710
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 711 int vb2_ioctl_reqbufs(struct file *file, void *priv,
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 712 struct v4l2_requestbuffers *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 713 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 714 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 715 int res = vb2_verify_memory_type(vdev->queue, p->memory, p->type);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 716
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 717 if (res)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 718 return res;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 719 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 720 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 721 res = vb2_core_reqbufs(vdev->queue, p->memory, &p->count);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 722 /* If count == 0, then the owner has released all buffers and he
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 723 is no longer owner of the queue. Otherwise we have a new owner. */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 724 if (res == 0)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 725 vdev->queue->owner = p->count ? file->private_data : NULL;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 726 return res;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 727 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 728 EXPORT_SYMBOL_GPL(vb2_ioctl_reqbufs);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 729
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 730 int vb2_ioctl_create_bufs(struct file *file, void *priv,
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 731 struct v4l2_create_buffers *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 732 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 @733 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 734 int res = vb2_verify_memory_type(vdev->queue, p->memory,
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 735 p->format.type);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 736
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 737 p->index = vdev->queue->num_buffers;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 738 /*
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 739 * If count == 0, then just check if memory and type are valid.
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 740 * Any -EBUSY result from vb2_verify_memory_type can be mapped to 0.
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 741 */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 742 if (p->count == 0)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 743 return res != -EBUSY ? res : 0;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 744 if (res)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 745 return res;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 746 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 747 return -EBUSY;
df9ecb0c drivers/media/v4l2-core/videobuf2-v4l2.c Hans Verkuil 2015-10-28 748
df9ecb0c drivers/media/v4l2-core/videobuf2-v4l2.c Hans Verkuil 2015-10-28 749 res = vb2_create_bufs(vdev->queue, p);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 750 if (res == 0)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 751 vdev->queue->owner = file->private_data;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 752 return res;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 753 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 754 EXPORT_SYMBOL_GPL(vb2_ioctl_create_bufs);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 755
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 756 int vb2_ioctl_prepare_buf(struct file *file, void *priv,
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 757 struct v4l2_buffer *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 758 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 759 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 760
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 761 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 762 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 763 return vb2_prepare_buf(vdev->queue, p);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 764 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 765 EXPORT_SYMBOL_GPL(vb2_ioctl_prepare_buf);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 766
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 767 int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 768 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 769 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 770
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 771 /* No need to call vb2_queue_is_busy(), anyone can query buffers. */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 772 return vb2_querybuf(vdev->queue, p);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 773 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 774 EXPORT_SYMBOL_GPL(vb2_ioctl_querybuf);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 775
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 776 int vb2_ioctl_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 777 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 778 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 779
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 780 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 781 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 782 return vb2_qbuf(vdev->queue, p);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 783 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 784 EXPORT_SYMBOL_GPL(vb2_ioctl_qbuf);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 785
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 786 int vb2_ioctl_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 787 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 788 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 789
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 790 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 791 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 792 return vb2_dqbuf(vdev->queue, p, file->f_flags & O_NONBLOCK);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 793 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 794 EXPORT_SYMBOL_GPL(vb2_ioctl_dqbuf);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 795
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 796 int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 797 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 798 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 799
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 800 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 801 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 802 return vb2_streamon(vdev->queue, i);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 803 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 804 EXPORT_SYMBOL_GPL(vb2_ioctl_streamon);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 805
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 806 int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 807 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 808 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 809
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 810 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 811 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 812 return vb2_streamoff(vdev->queue, i);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 813 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 814 EXPORT_SYMBOL_GPL(vb2_ioctl_streamoff);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 815
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 816 int vb2_ioctl_expbuf(struct file *file, void *priv, struct v4l2_exportbuffer *p)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 817 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 818 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 819
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 820 if (vb2_queue_is_busy(vdev, file))
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 821 return -EBUSY;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 822 return vb2_expbuf(vdev->queue, p);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 823 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 824 EXPORT_SYMBOL_GPL(vb2_ioctl_expbuf);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 825
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 826 /* v4l2_file_operations helpers */
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 827
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 828 int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 829 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 830 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 831
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 832 return vb2_mmap(vdev->queue, vma);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 833 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 834 EXPORT_SYMBOL_GPL(vb2_fop_mmap);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 835
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 836 int _vb2_fop_release(struct file *file, struct mutex *lock)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 837 {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 838 struct video_device *vdev = video_devdata(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 839
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 840 if (lock)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 841 mutex_lock(lock);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 842 if (file->private_data == vdev->queue->owner) {
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 843 vb2_queue_release(vdev->queue);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 844 vdev->queue->owner = NULL;
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 845 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 846 if (lock)
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 847 mutex_unlock(lock);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 @848 return v4l2_fh_release(file);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 849 }
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 850 EXPORT_SYMBOL_GPL(_vb2_fop_release);
3c5be988 drivers/media/v4l2-core/videobuf2-v4l2.c Junghak Sung 2015-10-06 851

:::::: The code at line 678 was first introduced by commit
:::::: 49d8ab9feaf20e7247edfdb36ce9ffa8db6b5f19 [media] media: videobuf2: Separate vb2_poll()

:::::: TO: Junghak Sung <jh1009.sung@xxxxxxxxxxx>
:::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>

---
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