powerpc/viobus: Free TCE table on device release
Release the TCE table as the XXX suggests, except on FW_FEATURE_ISERIES, where the tables are allocated globally and reused. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -1184,7 +1184,12 @@ EXPORT_SYMBOL(vio_unregister_driver);
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/* vio_dev refcount hit 0 */
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static void __devinit vio_dev_release(struct device *dev)
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{
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/* XXX should free TCE table */
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struct iommu_table *tbl = get_iommu_table_base(dev);
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/* iSeries uses a common table for all vio devices */
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if (!firmware_has_feature(FW_FEATURE_ISERIES) && tbl)
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iommu_free_table(tbl, dev->of_node ?
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dev->of_node->full_name : dev_name(dev));
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of_node_put(dev->of_node);
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kfree(to_vio_dev(dev));
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}
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