On Tue, Apr 10, 2018 at 11:32:05AM -0700, Jae Hyun Yoo wrote: > +static void peci_adapter_dev_release(struct device *dev) > +{ > + /* do nothing */ > +} As per the in-kernel documentation, I am now allowed to make fun of you. You are trying to "out smart" the kernel by getting rid of a warning message that was explicitly put there for you to do something. To think that by just providing an "empty" function you are somehow fulfilling the API requirement is quite bold, don't you think? This has to be fixed. I didn't put that warning in there for no good reason. Please go read the documentation again... greg k-h -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html