[Intel-gfx] [PATCH] gpu: drm: i915: fix error return code of igt_buddy_alloc_smoke()

[Chris Wilson]

Quoting Jia-Ju Bai (2021-03-08 08:59:52)
> When i915_random_order() returns NULL to order, no error return code of
> igt_buddy_alloc_smoke() is assigned.
> To fix this bug, err is assigned with -EINVAL in this case.

It would not be EINVAL since that is used for a reference failure, but
in this case the idea was to return 0 as no testing was done and the
ENOMEM was raised before testing began i.e. not an internal and
unexpected driver allocation failure.
-Chris