ui/vc: move cursor_timer initialization to QemuTextConsole class

The timer is only relevant when a text console exists.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230830093843.3531473-27-marcandre.lureau@redhat.com>

ui/console.c

@@ -1399,6 +1399,10 @@ qemu_text_console_finalize(Object *obj)
 static void
 qemu_text_console_class_init(ObjectClass *oc, void *data)
 {
+    if (!cursor_timer) {
+        cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
+                                    text_console_update_cursor, NULL);
+    }
 }
 
 static void
@@ -2144,8 +2148,6 @@ static DisplayState *get_alloc_displaystate(void)
 {
     if (!display_state) {
         display_state = g_new0(DisplayState, 1);
-        cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
-                                    text_console_update_cursor, NULL);
     }
     return display_state;
 }