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| author |   Dmitry Safonov <dima@arista.com> | 2019-07-16 22:38:06 +0100 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2019-07-22 17:43:06 +0200 |
| commit | 3ee9eca760e7d0b68c55813243de66bbb499dc3b (patch) | |
| tree | c9017fd789a53e515aac8a47e3849f0df6967fb9 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | iommu/vt-d: Don't queue_iova() if there is no flush queue (diff) | |
| download | linux-dev-3ee9eca760e7d0b68c55813243de66bbb499dc3b.tar.xz linux-dev-3ee9eca760e7d0b68c55813243de66bbb499dc3b.zip | |
iommu/vt-d: Check if domain->pgd was allocated
There is a couple of places where on domain_init() failure domain_exit()
is called. While currently domain_init() can fail only if
alloc_pgtable_page() has failed.
Make domain_exit() check if domain->pgd present, before calling
domain_unmap(), as it theoretically should crash on clearing pte entries
in dma_pte_clear_level().
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: iommu@lists.linux-foundation.org
Signed-off-by: Dmitry Safonov <dima@arista.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions