From: Lin Ming Date: Thu, 10 Apr 2008 15:06:41 +0000 (+0400) Subject: ACPICA: Fixed a problem with Index references passed as method arguments X-Git-Tag: v2.6.26-rc1~101^2~35 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5bcc811f78f294e7be8a0721b3fb513028c5af4;p=linux-2.6 ACPICA: Fixed a problem with Index references passed as method arguments 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 Signed-off-by: Bob Moore Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c index 74ab220a59..795ec8c736 100644 --- a/drivers/acpi/executer/exresolv.c +++ b/drivers/acpi/executer/exresolv.c @@ -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;