SRU Justification:

Impact: Currently, the kernel build produces a warning on the
cx23885-core.c:

drivers/media/video/cx23885/cx23885-core.c: In function ‘cx23885_free_buffer’:
drivers/media/video/cx23885/cx23885-core.c:1146:2: warning: passing argument 1 
of ‘videobuf_dma_unmap’ from incompatible pointer type
include/media/videobuf-dma-sg.h:100:5: note: expected ‘struct videobuf_queue *’ 
but argument is of type ‘struct device *’

- this *may* indicate that video buffers are not properly freed after
use

Fix: With this fix applied, the warning is no longer present

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https://bugs.launchpad.net/bugs/800527

Title:
  cx23885: Incorrect argument passed to videobuf_dma_unmap

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