arch/tile: allocate PCI IRQs later in boot

This change became required due to some recent reworking in the
platform-independent IRQ code.  It is required for 2.6.38 and later.

Cc: stable@kernel.org
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

arch/tile/kernel/pci.c

@@ -188,12 +188,6 @@ int __devinit tile_pci_init(void)
 
 			controller = &controllers[i];
 
-			if (tile_init_irqs(i, controller)) {
-				pr_err("PCI: Could not initialize "
-				       "IRQs, aborting.\n");
-				goto err_cont;
-			}
-
 			controller->index = i;
 			controller->hv_cfg_fd[0] = hv_cfg_fd0;
 			controller->hv_cfg_fd[1] = hv_cfg_fd1;
@@ -316,6 +310,11 @@ int __devinit pcibios_init(void)
 			struct pci_controller *controller = &controllers[i];
 			struct pci_bus *bus;
 
+			if (tile_init_irqs(i, controller)) {
+				pr_err("PCI: Could not initialize IRQs\n");
+				continue;
+			}
+
 			pr_info("PCI: initializing controller #%d\n", i);
 
 			/*