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704a28e88a
If firmware is not loaded for some reason, or if it is not ready yet, it makes no sense to honour to any DVB callbacks. So, return -EAGAIN, as the error condition may be temporary. If the device doesn't initialize, either because it requires a firmware or because there's an error during init_drxk, returns -ENODEV, to indicate such error, on all DVB callbacks. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>