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>

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);
 }