conf: nodedev: Refresh capabilities before touching them

Most of them are static, however in case of PCI and SCSI_HOST devices,
the nested capabilities can change dynamically, e.g. due to a driver
change (from host_pci_driver -> vfio_pci).
Signed-off-by: NErik Skultety <eskultet@redhat.com>
Suggested-by: NWu Zongyong <cordius.wu@huawei.com>

src/conf/node_device_conf.c

@@ -2515,6 +2515,9 @@ virNodeDeviceCapsListExport(virNodeDeviceDefPtr def,
             tmp[ncaps] = cap; \
     } while (0)
 
+    if (virNodeDeviceUpdateCaps(def) < 0)
+        goto cleanup;
+
     if (want_list && VIR_ALLOC_N(tmp, VIR_NODE_DEV_CAP_LAST - 1) < 0)
         goto cleanup;
 

src/conf/virnodedeviceobj.c

@@ -811,6 +811,10 @@ static bool
 virNodeDeviceMatch(virNodeDeviceObjPtr obj,
                    unsigned int flags)
 {
+    /* Refresh the capabilities first, e.g. due to a driver change */
+    if (virNodeDeviceUpdateCaps(obj->def) < 0)
+        return false;
+
     /* filter by cap type */
     if (flags & VIR_CONNECT_LIST_NODE_DEVICES_FILTERS_CAP) {
         if (!(MATCH(SYSTEM)        ||