[Intel-gfx] [PATCH] drm/i915: Guard error capture against unpinned vma

[Matthew Auld]

On Thu, 10 Jan 2019 at 11:15, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> If we find an incompletely setup vma inside the request/engine at the
> time of a hang, it may not have vma->pages initialised, so skip
> capturing the object before we iterate over NULL.
>
> Spotted by Matthew in preparation for using unpinned vma to track engine
> state.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>