[PATCH 0 of 9] videobuf fixes

[Brandon Philips <brandon@ifup.org>]

Hello-

Sorry for the mess-up on the first round.  :-(

The following set fixes problems I discovered while tracking down bugs in both
vivi and videobuf.  Hopefully most of these can make it into 2.6.25 since they
all seem pretty critical.

Please take a good look at the set and test if possible.  Particularly:
  [RFC] videobuf: Avoid deadlock with QBUF

Also, is anyone using videobuf-vmalloc besides vivi?  The current videobuf API
feels over extended trying to take on the task of a second backend type. 

Pullable from http://ifup.org/hg/v4l-dvb 

- soc_camera: Introduce a spinlock for use with videobuf
- videobuf: Require spinlocks for all videobuf users
- videobuf: Wakeup queues after changing the state to ERROR
- videobuf: Simplify videobuf_waiton logic and possibly avoid missed wakeup
- videobuf-vmalloc.c: Remove buf_release from videobuf_vm_close
- videobuf-vmalloc.c: Fix hack of postponing mmap on remap failure
- vivi: Simplify the vivi driver and avoid deadlocks
- videobuf: Avoid deadlock with QBUF and bring up to spec for empty queue
- videobuf-dma-sg.c: Avoid NULL dereference and add comment about backwards compatibility

 b/linux/drivers/media/video/pxa_camera.c       |   11 
 b/linux/drivers/media/video/soc_camera.c       |    5 
 b/linux/drivers/media/video/videobuf-core.c    |   46 -
 b/linux/drivers/media/video/videobuf-dma-sg.c  |   16 
 b/linux/drivers/media/video/videobuf-vmalloc.c |    2 
 b/linux/drivers/media/video/vivi.c             |  332 ++--------
 b/linux/include/media/soc_camera.h             |    1 
 b/linux/include/media/videobuf-core.h          |    3 
 linux/drivers/media/video/videobuf-core.c      |  169 +++--
 linux/drivers/media/video/videobuf-vmalloc.c   |   43 -
 linux/include/media/videobuf-core.h            |    2 
 11 files changed, 262 insertions(+), 368 deletions(-)

Thanks,

	Brandon

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