diff options
| author | Bob Moore <robert.moore@intel.com> | 2008-11-13 09:45:35 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-12-29 22:38:37 -0500 |
| commit | a8fadc923d1659f1a322194d420808d5b255883c (patch) | |
| tree | b8afd36cc4217400efb0e71c550c69bfc8822352 /drivers/acpi/parser/psparse.c | |
| parent | 9f15fc666ef54afc7aff31dfa31edecf00e0d81a (diff) | |
ACPICA: Add support to externally execute _OSI method
The current implemenation of _OSI within ACPICA only allows other
control methods to execute _OSI. This change allows the host
OS to execute _OSI via the AcpiEvaluateObject interface. _OSI
is a special method -- it does not exist in the AML code, it is
implemented within ACPICA.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/parser/psparse.c')
| -rw-r--r-- | drivers/acpi/parser/psparse.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c index dfd3d902801..5156203883d 100644 --- a/drivers/acpi/parser/psparse.c +++ b/drivers/acpi/parser/psparse.c @@ -447,6 +447,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) walk_state, walk_state->parser_state.aml, walk_state->parser_state.aml_size)); + if (!walk_state->parser_state.aml) { + return_ACPI_STATUS(AE_NULL_OBJECT); + } + /* Create and initialize a new thread state */ thread = acpi_ut_create_thread_state(); |