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path: root/drivers/acpi/acpi_mrrm.c
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Diffstat (limited to 'drivers/acpi/acpi_mrrm.c')
-rw-r--r--drivers/acpi/acpi_mrrm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_mrrm.c b/drivers/acpi/acpi_mrrm.c
index 47ea3ccc2142..a6dbf623e557 100644
--- a/drivers/acpi/acpi_mrrm.c
+++ b/drivers/acpi/acpi_mrrm.c
@@ -63,6 +63,9 @@ static __init int acpi_parse_mrrm(struct acpi_table_header *table)
if (!mrrm)
return -ENODEV;
+ if (mrrm->header.revision != 1)
+ return -EINVAL;
+
if (mrrm->flags & ACPI_MRRM_FLAGS_REGION_ASSIGNMENT_OS)
return -EOPNOTSUPP;