Re: [RFC PATCH 2/2] block: add uImage.FIT block partition driver

[Christoph Hellwig]

> +	dev = class_find_device_by_devt(&block_class, devt);
> +	if (!dev)
> +		return -EPROBE_DEFER;

FYI, class_find_device_by_devt is not for driver use.  The only reson
it isn't marker static is because of various legacy driver model and
devtmpfs interactions.