[PATCH 0/3] media: bttv: three post-vb2 fixes

[Hans Verkuil <hverkuil-cisco@xs4all.nl>]

Dave, thank you for your detailed bttv bug report:

https://lore.kernel.org/linux-media/ZVK_3UmvmOaCv1tc@gallifrey/

It was very helpful and I managed to reproduce these issues.

This patch series fixes them.

The first patch is unrelated, just something I noticed while
debugging this.

The second patch adds back the old bttv behavior of storing the
frame counter in the last 4 bytes of the vbi payload when using
read().

The final patch fixes the vbi read() behavior where it was
alternating between valid data and a zeroed buffer.

I'd appreciate it if you can test this before Dec 11 since I
plan to merge on Dec 11 if I don't hear anything.

Regards,

	Hans

Hans Verkuil (3):
  media: bttv: start_streaming should return a proper error code
  media: bttv: add back vbi hack
  media: videobuf2: request more buffers for vb2_read

 .../media/common/videobuf2/videobuf2-core.c   |  9 +++++--
 drivers/media/pci/bt8xx/bttv-driver.c         | 27 ++++++++++++++++---
 drivers/media/pci/bt8xx/bttv-vbi.c            |  8 +++---
 3 files changed, 33 insertions(+), 11 deletions(-)

-- 
2.42.0