From 6e8b092ad88c9afd51a74066a420fdef88c0ca74 Mon Sep 17 00:00:00 2001 From: 82marbag <69267416+82marbag@users.noreply.github.com> Date: Wed, 3 Nov 2021 13:10:53 +0000 Subject: [PATCH] fix null ptr in init_madt Signed-off-by: Daniele Ahmed --- common/acpi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/common/acpi.c b/common/acpi.c index 2897ed1f..9dfcd2b6 100644 --- a/common/acpi.c +++ b/common/acpi.c @@ -706,11 +706,12 @@ static ACPI_STATUS init_fadt(void) { static ACPI_STATUS init_madt(unsigned bsp_cpu_id) { ACPI_TABLE_MADT *madt = acpi_find_table(ACPI_SIG_MADT); ACPI_SUBTABLE_HEADER *subtbl = (void *) madt + sizeof(*madt); - uint32_t length = madt->Header.Length - sizeof(*madt); if (!madt || !subtbl) return AE_ERROR; + uint32_t length = madt->Header.Length - sizeof(*madt); + acpi_walk_subtables(subtbl, length, madt_parser, (void *) _ul(bsp_cpu_id)); return AE_OK; }