PCI hotplug: shpchp: fix bus number check to avoid false positive

With for (busnr = 0; busnr <= end; busnr++) { ... } busnr reaches end + 1
after the loop. So fix the "no busses available" check to look for just
busnr > end rather than >=.

Signed-off-by: Roel Kluin <[e-mail]>
Signed-off-by: Jesse Barnes <[e-mail]>

drivers/pci/hotplug/shpchp_pci.c

···
 							busnr))
 					break;
 			}
-			if (busnr >= end) {
+			if (busnr > end) {
 				ctrl_err(ctrl,
 					 "No free bus for hot-added bridge\n");
 				pci_dev_put(dev);