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Hans Verkuil authored
commit 5e99456c upstream. 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> Cc: Matthias Maennich <maennich@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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