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authorJoerg Roedel <joerg.roedel@amd.com>2009-05-22 14:48:05 +0400
committerJoerg Roedel <joerg.roedel@amd.com>2009-05-28 20:06:47 +0400
commit0bc252f430d6a3ac7836d40f00d0ae020593b11b (patch)
treea8a4ae4cf393588fcb03efc1370da0efd745c33f /arch/x86/kernel/amd_iommu_init.c
parent7455aab1f95f6464c5af3fbdee28744e73f38564 (diff)
downloadlinux-0bc252f430d6a3ac7836d40f00d0ae020593b11b.tar.xz
amd-iommu: make sure only ivmd entries are parsed
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>
Diffstat (limited to 'arch/x86/kernel/amd_iommu_init.c')
-rw-r--r--arch/x86/kernel/amd_iommu_init.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 53f93db54c4d..a3a2b98bb39e 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -906,6 +906,8 @@ static int __init init_unity_map_range(struct ivmd_header *m)
switch (m->type) {
default:
+ kfree(e);
+ return 0;
case ACPI_IVMD_TYPE:
e->devid_start = e->devid_end = m->devid;
break;