From: Alex Deucher alexander.deucher@amd.com
Allows us to verify the table size.
Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_bios.c | 6 ++---- 1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index a32232f..ab0b2f7 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -482,13 +482,12 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev) { bool ret = false; struct acpi_table_header *hdr; - /* acpi_get_table_with_size is not exported :( */ - acpi_size tbl_size = 0x7fffffff; + acpi_size tbl_size; UEFI_ACPI_VFCT *vfct; GOP_VBIOS_CONTENT *vbios; VFCT_IMAGE_HEADER *vhdr;
- if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr))) + if (!ACPI_SUCCESS(acpi_get_table_with_size("VFCT", 1, &hdr, &tbl_size))) return false; if (tbl_size < sizeof(UEFI_ACPI_VFCT)) { DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n"); @@ -525,7 +524,6 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev) ret = !!rdev->bios;
out_unmap: - /* uh, no idea what to do here... */ return ret; } #else