Re: [PATCH v8 1/6] fieldbus_dev: add Fieldbus Device subsystem.

[Greg KH]

On Thu, Jan 24, 2019 at 03:12:46PM -0500, Sven Van Asbroeck wrote:
> +static DEFINE_IDA(fieldbus_ida);

You forget to destroy this ida structure when the module is removed.
It's a common thing to get wrong :(

thanks,

greg k-h