> +static int __driver_probe_device(struct device_driver *drv, struct
> +device *dev) {
> + if (drv->delay_probe && !dev->init_delayed_probe) {
> + dev_info(dev, "Driver %s requests probe deferral on init\n",
> + drv->name);
> + dev->init_delayed_probe = true;
> + driver_deferred_probe_add(dev);
> + return -EPROBE_DEFER;
> + }
> +
> + return really_probe(dev, drv);
> +}
Perhaps this is a silly question, but what guarantees that the deferred probe
list will actually be triggered, e.g., in case the delayed device is the last
device
in the system?
[From drivers/base/dd.c - "A successful driver probe will trigger moving all
devices from the pending to the active list so that the workqueue will
eventually retry them]
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