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ACPICA: Fixed a problem with Index references passed as method arguments

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References passed as arguments to control methods were dereferenced
immediately (before control was passed to the called method). The
references are now correctly passed directly to the called
method.

http://bugzilla.kernel.org/show_bug.cgi?id=5389

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
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>
This commit is contained in:
Lin Ming 2008-04-10 19:06:41 +04:00 committed by Len Brown
parent 1f549a240c
commit e5bcc811f7
1 changed files with 8 additions and 2 deletions
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10
drivers/acpi/executer/exresolv.c
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@ -194,6 +194,12 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
case ACPI_TYPE_PACKAGE:
/* If method call - leave the Reference on the stack */
if (walk_state->opcode == AML_INT_METHODCALL_OP) {
break;
}
obj_desc = *stack_desc->reference.where;
if (obj_desc) {
/*
@ -210,7 +216,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
* the package, can't dereference it
*/
ACPI_ERROR((AE_INFO,
"Attempt to deref an Index to NULL pkg element Idx=%p",
"Attempt to dereference an Index to NULL package element Idx=%p",
stack_desc));
status = AE_AML_UNINITIALIZED_ELEMENT;
}
@ -221,7 +227,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
/* Invalid reference object */
ACPI_ERROR((AE_INFO,
"Unknown TargetType %X in Index/Reference obj %p",
"Unknown TargetType %X in Index/Reference object %p",
stack_desc->reference.target_type,
stack_desc));
status = AE_AML_INTERNAL;