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| author | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
| commit | b32e3dc7860d00124fa432dba09667e647cb9bcc (patch) | |
| tree | 2fa6e56f389431dfb84609d3d7572cad76e88e71 /drivers/acpi/acpica/tbfadt.c | |
| parent | 6604271c5bc658a6067ed0c3deba4d89e0e50382 (diff) | |
| parent | 96120d86fe302c006259baee9061eea9e1b9e486 (diff) | |
Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
Diffstat (limited to 'drivers/acpi/acpica/tbfadt.c')
| -rw-r--r-- | drivers/acpi/acpica/tbfadt.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 428d44e2d16..6f5588e62c0 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -384,8 +384,11 @@ static void acpi_tb_convert_fadt(void) * * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at * offset 45, 55, 95, and the word located at offset 109, 110. + * + * Note: The FADT revision value is unreliable. Only the length can be + * trusted. */ - if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) { + if (acpi_gbl_FADT.header.length <= ACPI_FADT_V2_SIZE) { acpi_gbl_FADT.preferred_profile = 0; acpi_gbl_FADT.pstate_control = 0; acpi_gbl_FADT.cst_control = 0; |