diff options
Diffstat (limited to 'drivers/acpi/resources/rscreate.c')
| -rw-r--r-- | drivers/acpi/resources/rscreate.c | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c index a3a0cbfda68..8e0eae0d50b 100644 --- a/drivers/acpi/resources/rscreate.c +++ b/drivers/acpi/resources/rscreate.c @@ -87,9 +87,8 @@ acpi_rs_create_resource_list ( ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "byte_stream_buffer = %p\n", byte_stream_buffer)); - /* - * Params already validated, so we don't re-validate here - */ + /* Params already validated, so we don't re-validate here */ + byte_stream_buffer_length = byte_stream_buffer->buffer.length; byte_stream_start = byte_stream_buffer->buffer.pointer; @@ -171,9 +170,8 @@ acpi_rs_create_pci_routing_table ( /* Params already validated, so we don't re-validate here */ - /* - * Get the required buffer length - */ + /* Get the required buffer length */ + status = acpi_rs_get_pci_routing_table_length (package_object, &buffer_size_needed); if (ACPI_FAILURE (status)) { @@ -217,9 +215,8 @@ acpi_rs_create_pci_routing_table ( */ user_prt->length = (sizeof (struct acpi_pci_routing_table) - 4); - /* - * Each element of the top-level package must also be a package - */ + /* Each element of the top-level package must also be a package */ + if (ACPI_GET_OBJECT_TYPE (*top_object_list) != ACPI_TYPE_PACKAGE) { ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "(PRT[%X]) Need sub-package, found %s\n", @@ -243,9 +240,8 @@ acpi_rs_create_pci_routing_table ( */ sub_object_list = (*top_object_list)->package.elements; - /* - * 1) First subobject: Dereference the PRT.Address - */ + /* 1) First subobject: Dereference the PRT.Address */ + obj_desc = sub_object_list[0]; if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_INTEGER) { user_prt->address = obj_desc->integer.value; @@ -257,9 +253,8 @@ acpi_rs_create_pci_routing_table ( return_ACPI_STATUS (AE_BAD_DATA); } - /* - * 2) Second subobject: Dereference the PRT.Pin - */ + /* 2) Second subobject: Dereference the PRT.Pin */ + obj_desc = sub_object_list[1]; if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_INTEGER) { user_prt->pin = (u32) obj_desc->integer.value; @@ -271,9 +266,8 @@ acpi_rs_create_pci_routing_table ( return_ACPI_STATUS (AE_BAD_DATA); } - /* - * 3) Third subobject: Dereference the PRT.source_name - */ + /* 3) Third subobject: Dereference the PRT.source_name */ + obj_desc = sub_object_list[2]; switch (ACPI_GET_OBJECT_TYPE (obj_desc)) { case ACPI_TYPE_LOCAL_REFERENCE: @@ -296,7 +290,9 @@ acpi_rs_create_pci_routing_table ( status = acpi_ns_handle_to_pathname ((acpi_handle) node, &path_buffer); - user_prt->length += (u32) ACPI_STRLEN (user_prt->source) + 1; /* include null terminator */ + /* +1 to include null terminator */ + + user_prt->length += (u32) ACPI_STRLEN (user_prt->source) + 1; break; @@ -304,8 +300,10 @@ acpi_rs_create_pci_routing_table ( ACPI_STRCPY (user_prt->source, obj_desc->string.pointer); - /* Add to the Length field the length of the string (add 1 for terminator) */ - + /* + * Add to the Length field the length of the string + * (add 1 for terminator) + */ user_prt->length += obj_desc->string.length + 1; break; @@ -333,9 +331,8 @@ acpi_rs_create_pci_routing_table ( user_prt->length = (u32) ACPI_ROUND_UP_to_64_bITS (user_prt->length); - /* - * 4) Fourth subobject: Dereference the PRT.source_index - */ + /* 4) Fourth subobject: Dereference the PRT.source_index */ + obj_desc = sub_object_list[3]; if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_INTEGER) { user_prt->source_index = (u32) obj_desc->integer.value; |