> Is there another reason why pch_i2c_getack returned EPROTO? > May be ENXIO was introduced later?
Imperfect review :) > I think we can just replace the -EIO with -ENXIO or do you want to pick up > the return > vale of pch_i2c_getack and return that ? The latter. As a rule of thumb, it is usually more sustainable to pass through error codes. Overloading them should only be done when really necessary IMO.
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