qemu_process: graphics: reserve port only if listen type is address or network

Ports are valid only for listen types 'address' and 'network', other listen
types doesn't use them so we should not try to reserve any ports.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

src/qemu/qemu_process.c

@@ -4011,6 +4011,17 @@ static int
 qemuProcessGraphicsReservePorts(virQEMUDriverPtr driver,
                                 virDomainGraphicsDefPtr graphics)
 {
+    virDomainGraphicsListenDefPtr glisten;
+
+    if (graphics->nListens <= 0)
+        return 0;
+
+    glisten = &graphics->listens[0];
+
+    if (glisten->type != VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS &&
+        glisten->type != VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK)
+        return 0;
+
     if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
         !graphics->data.vnc.autoport) {
         if (virPortAllocatorSetUsed(driver->remotePorts,