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[ Upstream commit c4e620eccb ]
Currently the buffers are being filled until full, which works fine
for the transport stream, but not when reading sections, those have
to be returned to userspace immediately, otherwise dvbv5-scan will
just wait forever.
Add a 'flush' argument to dvb_vb2_fill_buffer to indicate whether
the buffer must be flushed or wait until it is full.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>