diff options
Diffstat (limited to 'drivers/acpi/namespace/nswalk.c')
| -rw-r--r-- | drivers/acpi/namespace/nswalk.c | 105 |
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); } - - |