[PATCH kernel v11 05/34] powerpc/iommu: Always release iommu_table in iommu_free_table()

[David Gibson]

On Fri, May 29, 2015 at 06:44:29PM +1000, Alexey Kardashevskiy wrote:
> At the moment iommu_free_table() only releases memory if
> the table was initialized for the platform code use, i.e. it had
> it_map initialized (which purpose is to track DMA memory space use).
> 
> With dynamic DMA windows, we will need to be able to release
> iommu_table even if it was used for VFIO in which case it_map is NULL
> so does the patch.
> 
> Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>

Reviewed-by: David Gibson <david at gibson.dropbear.id.au>

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson
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