PCI: generic: fix missing call of pci_free_resource_list()

Call pci_free_resource_list() from pci_host_common_probe() when probing
fails, as done inside gen_pci_init() when this later function fails.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/host/pci-host-common.c

@@ -110,6 +110,7 @@ int pci_host_common_probe(struct platform_device *pdev,
 	ret = pci_scan_root_bus_bridge(bridge);
 	if (ret < 0) {
 		dev_err(dev, "Scanning root bridge failed");
+		pci_free_resource_list(&resources);
 		return ret;
 	}