diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-09 19:57:06 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-09 19:57:06 -0800 |
commit | 3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0 (patch) | |
tree | 761e19d279b27a03714a6673811e76e0b1cf2081 /drivers/acpi/acpica/nseval.c | |
parent | f71eaf68406cfee91b6a96bcdf7ce33dc78829c5 (diff) | |
parent | b00eb796f1b67c46036b5490e83b31741f1eebaf (diff) | |
download | blackbird-op-linux-3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0.tar.gz blackbird-op-linux-3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0.zip |
Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPICA: Update version to 20091112.
ACPICA: Add additional module-level code support
ACPICA: Deploy new create integer interface where appropriate
ACPICA: New internal utility function to create Integer objects
ACPICA: Add repair for predefined methods that must return sorted lists
ACPICA: Fix possible fault if return Package objects contain NULL elements
ACPICA: Add post-order callback to acpi_walk_namespace
ACPICA: Change package length error message to an info message
ACPICA: Reduce severity of predefined repair messages, Warning to Info
ACPICA: Update version to 20091013
ACPICA: Fix possible memory leak for Scope ASL operator
ACPICA: Remove possibility of executing _REG methods twice
ACPICA: Add repair for bad _MAT buffers
ACPICA: Add repair for bad _BIF/_BIX packages
Diffstat (limited to 'drivers/acpi/acpica/nseval.c')
-rw-r--r-- | drivers/acpi/acpica/nseval.c | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index 846d1132feb1..f771e978c403 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -366,33 +366,49 @@ static void acpi_ns_exec_module_code(union acpi_operand_object *method_obj, struct acpi_evaluate_info *info) { - union acpi_operand_object *root_obj; + union acpi_operand_object *parent_obj; + struct acpi_namespace_node *parent_node; + acpi_object_type type; acpi_status status; ACPI_FUNCTION_TRACE(ns_exec_module_code); + /* + * Get the parent node. We cheat by using the next_object field + * of the method object descriptor. + */ + parent_node = ACPI_CAST_PTR(struct acpi_namespace_node, + method_obj->method.next_object); + type = acpi_ns_get_type(parent_node); + + /* Must clear next_object (acpi_ns_attach_object needs the field) */ + + method_obj->method.next_object = NULL; + /* Initialize the evaluation information block */ ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info)); - info->prefix_node = acpi_gbl_root_node; + info->prefix_node = parent_node; /* - * Get the currently attached root object. Add a reference, because the + * Get the currently attached parent object. Add a reference, because the * ref count will be decreased when the method object is installed to - * the root node. + * the parent node. */ - root_obj = acpi_ns_get_attached_object(acpi_gbl_root_node); - acpi_ut_add_reference(root_obj); + parent_obj = acpi_ns_get_attached_object(parent_node); + if (parent_obj) { + acpi_ut_add_reference(parent_obj); + } - /* Install the method (module-level code) in the root node */ + /* Install the method (module-level code) in the parent node */ - status = acpi_ns_attach_object(acpi_gbl_root_node, method_obj, + status = acpi_ns_attach_object(parent_node, method_obj, ACPI_TYPE_METHOD); if (ACPI_FAILURE(status)) { goto exit; } - /* Execute the root node as a control method */ + /* Execute the parent node as a control method */ status = acpi_ns_evaluate(info); @@ -401,15 +417,19 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj, /* Detach the temporary method object */ - acpi_ns_detach_object(acpi_gbl_root_node); + acpi_ns_detach_object(parent_node); - /* Restore the original root object */ + /* Restore the original parent object */ - status = - acpi_ns_attach_object(acpi_gbl_root_node, root_obj, - ACPI_TYPE_DEVICE); + if (parent_obj) { + status = acpi_ns_attach_object(parent_node, parent_obj, type); + } else { + parent_node->type = (u8)type; + } exit: - acpi_ut_remove_reference(root_obj); + if (parent_obj) { + acpi_ut_remove_reference(parent_obj); + } return_VOID; } |