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path: root/drivers/acpi/acpica
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Diffstat (limited to 'drivers/acpi/acpica')
-rw-r--r--drivers/acpi/acpica/nsxfeval.c33
1 files changed, 30 insertions, 3 deletions
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index c76956bb8c45..4bd558bf10d2 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -923,19 +923,22 @@ ACPI_EXPORT_SYMBOL(acpi_detach_data)
/*******************************************************************************
*
- * FUNCTION: acpi_get_data
+ * FUNCTION: acpi_get_data_full
*
* PARAMETERS: obj_handle - Namespace node
* handler - Handler used in call to attach_data
* data - Where the data is returned
+ * callback - function to execute before returning
*
* RETURN: Status
*
- * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
+ * DESCRIPTION: Retrieve data that was previously attached to a namespace node
+ * and execute a callback before returning.
*
******************************************************************************/
acpi_status
-acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
+acpi_get_data_full(acpi_handle obj_handle, acpi_object_handler handler,
+ void **data, void (*callback)(void *))
{
struct acpi_namespace_node *node;
acpi_status status;
@@ -960,10 +963,34 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
}
status = acpi_ns_get_attached_data(node, handler, data);
+ if (ACPI_SUCCESS(status) && callback) {
+ callback(*data);
+ }
unlock_and_exit:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (status);
}
+ACPI_EXPORT_SYMBOL(acpi_get_data_full)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_data
+ *
+ * PARAMETERS: obj_handle - Namespace node
+ * handler - Handler used in call to attach_data
+ * data - Where the data is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
+{
+ return acpi_get_data_full(obj_handle, handler, data, NULL);
+}
+
ACPI_EXPORT_SYMBOL(acpi_get_data)