BUG in videobuf_reqbufs()

DISCUSSION e9hack 1 participant 1 message Jan 17, 2009 Media (V4L/DVB)

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e9hack

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2009-01-17 13:37 UTC #0 lore raw

Hi,

it seems there is a bug in videobuf_reqbufs(). Depend on the spec
(http://www.linuxtv.org/downloads/video4linux/API/V4L2_API/spec-single/v4l2.html#VIDIOC-REQBUFS),
it should be possible to deallocate all buffers. This doesn't work, because videobuf_reqbufs() bails out with EINVAL, if the function is called with a count lower than 1 (videobuf-core.c, line #399). Deallocate should be done with count set to 0.

Regards,
Hartmut