File fix_KMS_support.patch of Package virtualbox.openSUSE_Leap_42.2_Update

Index: VirtualBox-5.1.22/src/VBox/Additions/linux/drm/vbox_fb.c
===================================================================
--- VirtualBox-5.1.22.orig/src/VBox/Additions/linux/drm/vbox_fb.c
+++ VirtualBox-5.1.22/src/VBox/Additions/linux/drm/vbox_fb.c
@@ -409,6 +409,9 @@ static void vbox_fbdev_destroy(struct dr
     LogFunc(("vboxvideo: %d\n", __LINE__));
     if (fbdev->helper.fbdev) {
         info = fbdev->helper.fbdev;
+#ifdef CONFIG_FB_DEFERRED_IO
+	fb_deferred_io_cleanup(info);
+#endif
         unregister_framebuffer(info);
         if (info->cmap.len)
             fb_dealloc_cmap(&info->cmap);