anv: don't close invalid syncfd semaphore

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/intel/vulkan/anv_queue.c

@@ -1847,7 +1847,8 @@ anv_semaphore_impl_cleanup(struct anv_device *device,
       break;
 
    case ANV_SEMAPHORE_TYPE_SYNC_FILE:
-      close(impl->fd);
+      if (impl->fd >= 0)
+         close(impl->fd);
       break;
 
    case ANV_SEMAPHORE_TYPE_TIMELINE: