AMD IOMMU: protect completion wait loop with iommu lock

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The unlocked polling of the ComWaitInt bit in the IOMMU completion wait
path is racy. Protect it with the iommu lock.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Joerg Roedel 2008-09-17 14:19:15 +02:00 • committed by Ingo Molnar

parent ee2fa7435b

commit 7e4f88da7b

1 changed files with 8 additions and 4 deletions

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arch/x86/kernel/amd_iommu.c

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