diff --git a/sys/dev/pci/pci_host_generic.c b/sys/dev/pci/pci_host_generic.c
--- a/sys/dev/pci/pci_host_generic.c
+++ b/sys/dev/pci/pci_host_generic.c
@@ -86,7 +86,7 @@
 	const char *range_descr;
 	char buf[64];
 	int domain, error;
-	int flags, rid, tuple, type;
+	int flags, rid, tuple;
 
 	sc = device_get_softc(dev);
 	sc->dev = dev;
@@ -182,21 +182,18 @@
 			sc->has_pmem = true;
 			range_descr = "prefetch";
 			flags = RF_PREFETCHABLE;
-			type = SYS_RES_MEMORY;
 			error = rman_manage_region(&sc->pmem_rman,
 			   pci_base, pci_base + size - 1);
 			break;
 		case FLAG_TYPE_MEM:
 			range_descr = "memory";
 			flags = 0;
-			type = SYS_RES_MEMORY;
 			error = rman_manage_region(&sc->mem_rman,
 			   pci_base, pci_base + size - 1);
 			break;
 		case FLAG_TYPE_IO:
 			range_descr = "I/O port";
 			flags = 0;
-			type = SYS_RES_IOPORT;
 			error = rman_manage_region(&sc->io_rman,
 			   pci_base, pci_base + size - 1);
 			break;
@@ -208,15 +205,16 @@
 						"error = %d\n", error);
 			goto err_rman_manage;
 		}
-		error = bus_set_resource(dev, type, rid, phys_base, size);
+		error = bus_set_resource(dev, SYS_RES_MEMORY, rid, phys_base,
+		    size);
 		if (error != 0) {
 			device_printf(dev,
 			    "failed to set resource for range %d: %d\n", tuple,
 			    error);
 			goto err_rman_manage;
 		}
-		sc->ranges[tuple].res = bus_alloc_resource_any(dev, type, &rid,
-		    RF_ACTIVE | RF_UNMAPPED | flags);
+		sc->ranges[tuple].res = bus_alloc_resource_any(dev,
+		    SYS_RES_MEMORY, &rid, RF_ACTIVE | RF_UNMAPPED | flags);
 		if (sc->ranges[tuple].res == NULL) {
 			device_printf(dev,
 			    "failed to allocate resource for range %d\n", tuple);
@@ -238,18 +236,15 @@
 		switch (FLAG_TYPE(sc->ranges[tuple].flags)) {
 		case FLAG_TYPE_PMEM:
 		case FLAG_TYPE_MEM:
-			type = SYS_RES_MEMORY;
-			break;
 		case FLAG_TYPE_IO:
-			type = SYS_RES_IOPORT;
 			break;
 		default:
 			continue;
 		}
 		if (sc->ranges[tuple].res != NULL)
-			bus_release_resource(dev, type, tuple + 1,
+			bus_release_resource(dev, SYS_RES_MEMORY, tuple + 1,
 			    sc->ranges[tuple].res);
-		bus_delete_resource(dev, type, tuple + 1);
+		bus_delete_resource(dev, SYS_RES_MEMORY, tuple + 1);
 	}
 	rman_fini(&sc->io_rman);
 err_io_rman:
@@ -271,7 +266,7 @@
 pci_host_generic_core_detach(device_t dev)
 {
 	struct generic_pcie_core_softc *sc;
-	int error, tuple, type;
+	int error, tuple;
 
 	sc = device_get_softc(dev);
 
@@ -285,18 +280,15 @@
 		switch (FLAG_TYPE(sc->ranges[tuple].flags)) {
 		case FLAG_TYPE_PMEM:
 		case FLAG_TYPE_MEM:
-			type = SYS_RES_MEMORY;
-			break;
 		case FLAG_TYPE_IO:
-			type = SYS_RES_IOPORT;
 			break;
 		default:
 			continue;
 		}
 		if (sc->ranges[tuple].res != NULL)
-			bus_release_resource(dev, type, tuple + 1,
+			bus_release_resource(dev, SYS_RES_MEMORY, tuple + 1,
 			    sc->ranges[tuple].res);
-		bus_delete_resource(dev, type, tuple + 1);
+		bus_delete_resource(dev, SYS_RES_MEMORY, tuple + 1);
 	}
 	rman_fini(&sc->io_rman);
 	rman_fini(&sc->mem_rman);