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| author | Bob Moore <robert.moore@intel.com> | 2008-04-10 19:06:43 +0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-04-22 14:29:31 -0400 |
| commit | 24a3157a90ddf851a0880c0b8963bc43481cd85b (patch) | |
| tree | 0a57648310f97b5907a09cf04412d68b79d908e4 /drivers/acpi | |
| parent | a3df4dadd446c0d7195f2bbe86dd5174426d8090 (diff) | |
| download | linux-24a3157a90ddf851a0880c0b8963bc43481cd85b.tar.gz | |
ACPICA: Fix for possible error when packages/buffers are passed to methods externally
Fixed a problem where buffer and package objects passed as arguments to a control method via the external AcpiEvaluateObject interface could cause an AE_AML_INTERNAL exception depending on the order and type of operators executed by the target control method. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/utilities/utcopy.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c index 4c4021d82f99..4e9a62b34aef 100644 --- a/drivers/acpi/utilities/utcopy.c +++ b/drivers/acpi/utilities/utcopy.c @@ -511,6 +511,10 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, external_object->buffer.length); internal_object->buffer.length = external_object->buffer.length; + + /* Mark buffer data valid */ + + internal_object->buffer.flags |= AOPOBJ_DATA_VALID; break; case ACPI_TYPE_INTEGER: @@ -586,6 +590,10 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object, } } + /* Mark package data valid */ + + package_object->package.flags |= AOPOBJ_DATA_VALID; + *internal_object = package_object; return_ACPI_STATUS(status); } |