--- zzzz-none-000/linux-4.4.271/drivers/pci/bus.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/pci/bus.c	2023-04-19 10:22:29.000000000 +0000
@@ -91,6 +91,35 @@
 	}
 }
 
+int devm_request_pci_bus_resources(struct device *dev,
+				   struct list_head *resources)
+{
+	struct resource_entry *win;
+	struct resource *parent, *res;
+	int err;
+
+	resource_list_for_each_entry(win, resources) {
+		res = win->res;
+		switch (resource_type(res)) {
+		case IORESOURCE_IO:
+			parent = &ioport_resource;
+			break;
+		case IORESOURCE_MEM:
+			parent = &iomem_resource;
+			break;
+		default:
+			continue;
+		}
+
+		err = devm_request_resource(dev, parent, res);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(devm_request_pci_bus_resources);
+
 static struct pci_bus_region pci_32_bit = {0, 0xffffffffULL};
 #ifdef CONFIG_PCI_BUS_ADDR_T_64BIT
 static struct pci_bus_region pci_64_bit = {0,
@@ -387,4 +416,3 @@
 		put_device(&bus->dev);
 }
 EXPORT_SYMBOL(pci_bus_put);
-