Commit dc131bcd authored by Tony Luck's avatar Tony Luck Committed by Rafael J. Wysocki
Browse files

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: b9020bdb ("ACPI: MRRM: Minimal parse of ACPI MRRM table")
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20251022204523.10752-1-tony.luck@intel.com


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent dcb6fa37

drivers/acpi/acpi_mrrm.c

+3 −0
Original line number Diff line number Diff line
@@ -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;