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由 Hans Verkuil 提交于
Several error paths didn't log why an error was returned. Add this. Also handle the corner case of "adapter is unconfigured AND the message is from Unregistered to TV AND reply is non-zero" separately and return EINVAL in that case, since it really is an invalid value and not an unconfigured CEC device. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
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