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path: root/drivers/acpi/namespace/nswalk.c
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Diffstat (limited to 'drivers/acpi/namespace/nswalk.c')
-rw-r--r--drivers/acpi/namespace/nswalk.c105
1 files changed, 50 insertions, 55 deletions
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
index f9a7277dca6..5f164c0df33 100644
--- a/drivers/acpi/namespace/nswalk.c
+++ b/drivers/acpi/namespace/nswalk.c
@@ -41,14 +41,11 @@
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
-
#define _COMPONENT ACPI_NAMESPACE
- ACPI_MODULE_NAME ("nswalk")
-
+ACPI_MODULE_NAME("nswalk")
/*******************************************************************************
*
@@ -68,18 +65,15 @@
* within Scope is returned.
*
******************************************************************************/
-
-struct acpi_namespace_node *
-acpi_ns_get_next_node (
- acpi_object_type type,
- struct acpi_namespace_node *parent_node,
- struct acpi_namespace_node *child_node)
+struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
+ struct acpi_namespace_node
+ *parent_node,
+ struct acpi_namespace_node
+ *child_node)
{
- struct acpi_namespace_node *next_node = NULL;
-
-
- ACPI_FUNCTION_ENTRY ();
+ struct acpi_namespace_node *next_node = NULL;
+ ACPI_FUNCTION_ENTRY();
if (!child_node) {
/* It's really the parent's _scope_ that we want */
@@ -92,7 +86,7 @@ acpi_ns_get_next_node (
else {
/* Start search at the NEXT node */
- next_node = acpi_ns_get_next_valid_node (child_node);
+ next_node = acpi_ns_get_next_valid_node(child_node);
}
/* If any type is OK, we are done */
@@ -114,7 +108,7 @@ acpi_ns_get_next_node (
/* Otherwise, move on to the next node */
- next_node = acpi_ns_get_next_valid_node (next_node);
+ next_node = acpi_ns_get_next_valid_node(next_node);
}
/* Not found */
@@ -122,7 +116,6 @@ acpi_ns_get_next_node (
return (NULL);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_walk_namespace
@@ -154,25 +147,21 @@ acpi_ns_get_next_node (
******************************************************************************/
acpi_status
-acpi_ns_walk_namespace (
- acpi_object_type type,
- acpi_handle start_node,
- u32 max_depth,
- u8 unlock_before_callback,
- acpi_walk_callback user_function,
- void *context,
- void **return_value)
+acpi_ns_walk_namespace(acpi_object_type type,
+ acpi_handle start_node,
+ u32 max_depth,
+ u8 unlock_before_callback,
+ acpi_walk_callback user_function,
+ void *context, void **return_value)
{
- acpi_status status;
- acpi_status mutex_status;
- struct acpi_namespace_node *child_node;
- struct acpi_namespace_node *parent_node;
- acpi_object_type child_type;
- u32 level;
-
-
- ACPI_FUNCTION_TRACE ("ns_walk_namespace");
+ acpi_status status;
+ acpi_status mutex_status;
+ struct acpi_namespace_node *child_node;
+ struct acpi_namespace_node *parent_node;
+ acpi_object_type child_type;
+ u32 level;
+ ACPI_FUNCTION_TRACE("ns_walk_namespace");
/* Special case for the namespace Root Node */
@@ -183,9 +172,9 @@ acpi_ns_walk_namespace (
/* Null child means "get first node" */
parent_node = start_node;
- child_node = NULL;
- child_type = ACPI_TYPE_ANY;
- level = 1;
+ child_node = NULL;
+ child_type = ACPI_TYPE_ANY;
+ level = 1;
/*
* Traverse the tree of nodes until we bubble back up to where we
@@ -196,7 +185,9 @@ acpi_ns_walk_namespace (
/* Get the next node in this scope. Null if not found */
status = AE_OK;
- child_node = acpi_ns_get_next_node (ACPI_TYPE_ANY, parent_node, child_node);
+ child_node =
+ acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
+ child_node);
if (child_node) {
/*
* Found node, Get the type if we are not
@@ -212,19 +203,25 @@ acpi_ns_walk_namespace (
* callback function
*/
if (unlock_before_callback) {
- mutex_status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (mutex_status)) {
- return_ACPI_STATUS (mutex_status);
+ mutex_status =
+ acpi_ut_release_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(mutex_status)) {
+ return_ACPI_STATUS
+ (mutex_status);
}
}
- status = user_function (child_node, level,
- context, return_value);
+ status = user_function(child_node, level,
+ context, return_value);
if (unlock_before_callback) {
- mutex_status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (mutex_status)) {
- return_ACPI_STATUS (mutex_status);
+ mutex_status =
+ acpi_ut_acquire_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(mutex_status)) {
+ return_ACPI_STATUS
+ (mutex_status);
}
}
@@ -239,13 +236,13 @@ acpi_ns_walk_namespace (
/* Exit now, with OK status */
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
default:
/* All others are valid exceptions */
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
}
@@ -258,7 +255,8 @@ acpi_ns_walk_namespace (
* maximum depth has been reached.
*/
if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
- if (acpi_ns_get_next_node (ACPI_TYPE_ANY, child_node, NULL)) {
+ if (acpi_ns_get_next_node
+ (ACPI_TYPE_ANY, child_node, NULL)) {
/*
* There is at least one child of this
* node, visit the onde
@@ -268,8 +266,7 @@ acpi_ns_walk_namespace (
child_node = NULL;
}
}
- }
- else {
+ } else {
/*
* No more children of this node (acpi_ns_get_next_node
* failed), go back upwards in the namespace tree to
@@ -277,13 +274,11 @@ acpi_ns_walk_namespace (
*/
level--;
child_node = parent_node;
- parent_node = acpi_ns_get_parent_node (parent_node);
+ parent_node = acpi_ns_get_parent_node(parent_node);
}
}
/* Complete walk, not terminated by user function */
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
-