Bug Summary

File:/home/joel/rtems-4.11-work/build/rtems/c/src/../../cpukit/score/src/objectnametoid.c
Location:line 83, column 5
Description:Value stored to 'name_length' is never read

Annotated Source Code

1/*
2 * Object Handler
3 *
4 *
5 * COPYRIGHT (c) 1989-2008.
6 * On-Line Applications Research Corporation (OAR).
7 *
8 * The license and distribution terms for this file may be
9 * found in the file LICENSE in this distribution or at
10 * http://www.rtems.com/license/LICENSE.
11 *
12 * $Id: objectnametoid.c,v 1.14 2008/12/22 05:52:32 ralf Exp $
13 */
14
15#if HAVE_CONFIG_H1
16#include "config.h"
17#endif
18
19#include <rtems/system.h>
20#include <rtems/score/address.h>
21#include <rtems/score/chain.h>
22#include <rtems/score/object.h>
23#if defined(RTEMS_MULTIPROCESSING)
24#include <rtems/score/objectmp.h>
25#endif
26#include <rtems/score/thread.h>
27#include <rtems/score/wkspace.h>
28#include <rtems/score/sysstate.h>
29#include <rtems/score/isr.h>
30
31/*PAGE
32 *
33 * _Objects_Name_to_id_u32
34 *
35 * These kernel routines search the object table(s) for the given
36 * object name and returns the associated object id.
37 *
38 * Input parameters:
39 * information - object information
40 * name - user defined object name
41 * node - node indentifier (0 indicates any node)
42 * id - address of return ID
43 *
44 * Output parameters:
45 * id - object id
46 * OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL - if successful
47 * error code - if unsuccessful
48 */
49
50Objects_Name_or_id_lookup_errors _Objects_Name_to_id_u32(
51 Objects_Information *information,
52 uint32_t name,
53 uint32_t node,
54 Objects_Id *id
55)
56{
57 bool_Bool search_local_node;
58 Objects_Control *the_object;
59 uint32_t index;
60 uint32_t name_length;
61#if defined(RTEMS_MULTIPROCESSING)
62 Objects_Name name_for_mp;
63#endif
64
65 /* ASSERT: information->is_string == false */
66
67 if ( !id )
68 return OBJECTS_INVALID_ADDRESS;
69
70 if ( name == 0 )
71 return OBJECTS_INVALID_NAME;
72
73 search_local_node = false0;
74
75 if ( information->maximum != 0 &&
76 (node == OBJECTS_SEARCH_ALL_NODES0 ||
77 node == OBJECTS_SEARCH_LOCAL_NODE0x7FFFFFFF ||
78 _Objects_Is_local_node( node )
79 ))
80 search_local_node = true1;
81
82 if ( search_local_node ) {
83 name_length = information->name_length;
Value stored to 'name_length' is never read
84
85 for ( index = 1; index <= information->maximum; index++ ) {
86 the_object = information->local_table[ index ];
87 if ( !the_object )
88 continue;
89
90 if ( name == the_object->name.name_u32 ) {
91 *id = the_object->id;
92 return OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL;
93 }
94 }
95 }
96
97#if defined(RTEMS_MULTIPROCESSING)
98 if ( _Objects_Is_local_node( node ) || node == OBJECTS_SEARCH_LOCAL_NODE0x7FFFFFFF )
99 return OBJECTS_INVALID_NAME;
100
101 name_for_mp.name_u32 = name;
102 return _Objects_MP_Global_name_search( information, name_for_mp, node, id );
103#else
104 return OBJECTS_INVALID_NAME;
105#endif
106}