intel-iommu: iommu init error path bug fixes

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The kcalloc() failure path in iommu_init_domains() calls
free_dmar_iommu(), which assumes that ->domains, ->domain_ids,
and ->lock have been properly initialized.

Add checks in free_[dmar]_iommu to not use ->domains,->domain_ids
if not alloced. Move the lock init to prior to the kcalloc()'s,
so it is valid in free_context_table() when free_dmar_iommu() invokes
it at the end.

Patch based on iommu-2.6,
commit 132032274a

Signed-off-by: Donald Dutile <ddutile@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

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Donald Dutile 2009-08-20 16:51:34 -04:00 • committed by David Woodhouse

parent 071e13746f

commit 94a91b5051

1 changed files with 18 additions and 17 deletions

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drivers/pci/intel-iommu.c

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