qemu: Release bus address on PCI host device remove

Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>

src/qemu/qemu_driver.c

@@ -8624,6 +8624,10 @@ static int qemudDomainDetachHostPciDevice(struct qemud_driver *driver,
         pciFreeDevice(pci);
     }
 
+    if (qemuDomainPCIAddressReleaseAddr(priv->pciaddrs, &detach->info) < 0) {
+        VIR_WARN0("Unable to release PCI address on controller");
+    }
+
     if (vm->def->nhostdevs > 1) {
         memmove(vm->def->hostdevs + i,
                 vm->def->hostdevs + i + 1,