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ACPI: MRRM: Check revision of MRRM table 

Before trying to parse the MRRM table, check that the table revision
is the one that is expected.

Fixes: b9020bdb9f ("ACPI: MRRM: Minimal parse of ACPI MRRM table")
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20251022204523.10752-1-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Tony Luck 2025-10-22 13:45:23 -07:00 committed by Rafael J. Wysocki
parent dcb6fa37fd
commit dc131bcd8d
1 changed files with 3 additions and 0 deletions
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3
drivers/acpi/acpi_mrrm.c
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@ -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;