o [arcnet com90io] replace check_region with temporary
    request_region, in probe phase.

check_region() is deprecated because it is racy.
Replacing it with request_region in probe:

int probe() {
	if(!request_region(...))
		return 0;
	/* probe */
	release_region(...);
}

int init() {
	request_region(...);
}

only removes 'deprecated' warning. Race remains.
--
vda