media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused()

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Userspace shouldn't set bytesused to 0 for output buffers.
vb2_warn_zero_bytesused() warns about this (only once!), but it also
calls WARN_ON(1), which is confusing since it is not immediately clear
that it warns about a 0 value for bytesused.

Just drop the WARN_ON as it serves no purpose.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Hans Verkuil 2018-11-19 10:33:44 -05:00 • committed by Mauro Carvalho Chehab

parent d644cca50f

commit 5e99456c20

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drivers/media/common/videobuf2/videobuf2-v4l2.c

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