[PATCH v2] drm: rcar-du: fix possible object reference leak

[Markus Elfring]

> v2->v1: turn the return into a goto done.

* The version identification can be shorter, can't it?

* The expection handling should be completed for the implementation
  of the function “rcar_du_of_lvds_patch” in a different way.
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/gpu/drm/rcar-du/rcar_du_of.c?id=ac5b84a1ffe93c9fb882c0f2bdfac1c33077b920#n195

  How do you think about to add a few jump targets (at the end)?

Regards,
Markus