In sound/soc/soc-core.c:snd_bind_dai_link() (and a couple of other places), there are a number of dev_err printouts followed by return -EPROBE_DEFER. Should these really be ERROR messages, as a probe deferral is not an error?

Admittedly, if there really is a problem, it's nice to get some information about it, so perhaps the error level should be relaxed somewhat?

A case in point would be a SOC machine driver which needs a GPIO which is not loaded until after the kernel has booted.

/Ricard