Re: [PATCH] drm/i915: Move ioremap_wc tracking onto VMA

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On Wed, Apr 13, 2016 at 03:47:58PM +0100, Chris Wilson wrote:
> +	/* We also want to clear any cached iomaps as they wrap vmap */
> +	list_for_each_entry_safe(vma, next,
> +				 &dev_priv->ggtt.base.inactive_list, vm_link)
> +		if (vma->iomap && i915_vma_unbind(vma) == 0)
> +			freed_pages += vma->node.size >> PAGE_SHIFT;

Use after free. I need to store the page count in a local before calling
unbind.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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