powerpc/iommu: Fix iommu pool initialization
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 13 Jul 2012 07:45:49 +0000 (17:45 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 13 Jul 2012 07:45:49 +0000 (17:45 +1000)
The iommu pool patch has a bug where it would cause a crash when using
only one pool (based on the size of the DMA window).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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