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amd-iommu: make sure only ivmd entries are parsed

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The bug never triggered. But it should be fixed to protect against
broken ACPI tables in the future.

[ Impact: protect against broken ivrs acpi table ]

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2009-05-22 12:48:05 +02:00
parent 7455aab1f9
commit 0bc252f430
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kernel/amd_iommu_init.c
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@ -906,6 +906,8 @@ static int __init init_unity_map_range(struct ivmd_header *m)
switch (m->type) { switch (m->type) {
default: default:
kfree(e);
return 0;
case ACPI_IVMD_TYPE: case ACPI_IVMD_TYPE:
e->devid_start = e->devid_end = m->devid; e->devid_start = e->devid_end = m->devid;
break; break;