Ticket #9891: report-mq2NP5.html

File report-mq2NP5.html, 15.4 KB (added by mt, 11 years ago)

Report by Clang Static Analyzer - 2

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1<!doctype html>
2<html>
3<head>
4<title>/boot/home/haiku/haiku/src/kits/storage/disk_device/jobs/SetStringJob.cpp</title>
5<style type="text/css">
6 body { color:#000000; background-color:#ffffff }
7 body { font-family:Helvetica, sans-serif; font-size:10pt }
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14 .string_literal { color: red }
15 .directive { color: darkmagenta }
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32 .msgT { padding:0x; spacing:0x }
33 .msgEvent { background-color:#fff8b4; color:#000000 }
34 .msgControl { background-color:#bbbbbb; color:#000000 }
35 .mrange { background-color:#dfddf3 }
36 .mrange { border-bottom:1px solid #6F9DBE }
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48 margin:20px;
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51 td.rowname {
52 text-align:right; font-weight:bold; color:#444444;
53 padding-right:2ex; }
54</style>
55</head>
56<body>
57<!-- BUGDESC Called C++ object pointer is null -->
58
59<!-- BUGTYPE Called C++ object pointer is null -->
60
61<!-- BUGCATEGORY Logic error -->
62
63<!-- BUGFILE /boot/home/haiku/haiku/src/kits/storage/disk_device/jobs/SetStringJob.cpp -->
64
65<!-- BUGLINE 66 -->
66
67<!-- BUGPATHLENGTH 4 -->
68
69<!-- BUGMETAEND -->
70<!-- REPORTHEADER -->
71<h3>Bug Summary</h3>
72<table class="simpletable">
73<tr><td class="rowname">File:</td><td>/boot/home/haiku/haiku/src/kits/storage/disk_device/jobs/SetStringJob.cpp</td></tr>
74<tr><td class="rowname">Location:</td><td><a href="#EndPath">line 66, column 21</a></td></tr>
75<tr><td class="rowname">Description:</td><td>Called C++ object pointer is null</td></tr>
76</table>
77<!-- REPORTSUMMARYEXTRA -->
78<h3>Annotated Source Code</h3>
79<table class="code">
80<tr><td class="num" id="LN1">1</td><td class="line"><span class='comment'>/*</span></td></tr>
81<tr><td class="num" id="LN2">2</td><td class="line"> <span class='comment'>* Copyright 2007, Ingo Weinhold, ingo_weinhold@gmx.de.</span></td></tr>
82<tr><td class="num" id="LN3">3</td><td class="line"> <span class='comment'>* Distributed under the terms of the MIT License.</span></td></tr>
83<tr><td class="num" id="LN4">4</td><td class="line"> <span class='comment'>*/</span></td></tr>
84<tr><td class="num" id="LN5">5</td><td class="line"> </td></tr>
85<tr><td class="num" id="LN6">6</td><td class="line"> </td></tr>
86<tr><td class="num" id="LN7">7</td><td class="line"><span class='directive'>#include "SetStringJob.h"</span></td></tr>
87<tr><td class="num" id="LN8">8</td><td class="line"> </td></tr>
88<tr><td class="num" id="LN9">9</td><td class="line"><span class='directive'>#include &lt;syscalls.h&gt;</span></td></tr>
89<tr><td class="num" id="LN10">10</td><td class="line"> </td></tr>
90<tr><td class="num" id="LN11">11</td><td class="line"><span class='directive'>#include "DiskDeviceUtils.h"</span></td></tr>
91<tr><td class="num" id="LN12">12</td><td class="line"><span class='directive'>#include "PartitionReference.h"</span></td></tr>
92<tr><td class="num" id="LN13">13</td><td class="line"> </td></tr>
93<tr><td class="num" id="LN14">14</td><td class="line"> </td></tr>
94<tr><td class="num" id="LN15">15</td><td class="line"><span class='comment'>// constructor</span></td></tr>
95<tr><td class="num" id="LN16">16</td><td class="line">SetStringJob::SetStringJob(PartitionReference* partition,</td></tr>
96<tr><td class="num" id="LN17">17</td><td class="line"> PartitionReference* child)</td></tr>
97<tr><td class="num" id="LN18">18</td><td class="line"> :</td></tr>
98<tr><td class="num" id="LN19">19</td><td class="line"> DiskDeviceJob(partition, child),</td></tr>
99<tr><td class="num" id="LN20">20</td><td class="line"> fString(<span class='macro'>NULL<span class='expansion'>__null</span></span>)</td></tr>
100<tr><td class="num" id="LN21">21</td><td class="line">{</td></tr>
101<tr><td class="num" id="LN22">22</td><td class="line">}</td></tr>
102<tr><td class="num" id="LN23">23</td><td class="line"> </td></tr>
103<tr><td class="num" id="LN24">24</td><td class="line"> </td></tr>
104<tr><td class="num" id="LN25">25</td><td class="line"><span class='comment'>// destructor</span></td></tr>
105<tr><td class="num" id="LN26">26</td><td class="line">SetStringJob::~SetStringJob()</td></tr>
106<tr><td class="num" id="LN27">27</td><td class="line">{</td></tr>
107<tr><td class="num" id="LN28">28</td><td class="line"> free(fString);</td></tr>
108<tr><td class="num" id="LN29">29</td><td class="line">}</td></tr>
109<tr><td class="num" id="LN30">30</td><td class="line"> </td></tr>
110<tr><td class="num" id="LN31">31</td><td class="line"> </td></tr>
111<tr><td class="num" id="LN32">32</td><td class="line"><span class='comment'>// Init</span></td></tr>
112<tr><td class="num" id="LN33">33</td><td class="line">status_t</td></tr>
113<tr><td class="num" id="LN34">34</td><td class="line">SetStringJob::Init(<span class='keyword'>const</span> <span class='keyword'>char</span>* string, uint32 jobType)</td></tr>
114<tr><td class="num" id="LN35">35</td><td class="line">{</td></tr>
115<tr><td class="num" id="LN36">36</td><td class="line"> <span class='keyword'>switch</span> (jobType) {</td></tr>
116<tr><td class="num" id="LN37">37</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_NAME:</td></tr>
117<tr><td class="num" id="LN38">38</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_CONTENT_NAME:</td></tr>
118<tr><td class="num" id="LN39">39</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_TYPE:</td></tr>
119<tr><td class="num" id="LN40">40</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_PARAMETERS:</td></tr>
120<tr><td class="num" id="LN41">41</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_CONTENT_PARAMETERS:</td></tr>
121<tr><td class="num" id="LN42">42</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
122<tr><td class="num" id="LN43">43</td><td class="line"> <span class='keyword'>default</span>:</td></tr>
123<tr><td class="num" id="LN44">44</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_BAD_VALUE<span class='expansion'>((-2147483647 - 1) + 5)</span></span>;</td></tr>
124<tr><td class="num" id="LN45">45</td><td class="line"> }</td></tr>
125<tr><td class="num" id="LN46">46</td><td class="line"> </td></tr>
126<tr><td class="num" id="LN47">47</td><td class="line"> fJobType = jobType;</td></tr>
127<tr><td class="num" id="LN48">48</td><td class="line"> <span class='macro'>SET_STRING_RETURN_ON_ERROR(fString, string)<span class='expansion'>{ status_t error = set_string(fString, string); if (error != (<br>(int)0)) return error; }</span></span>;</td></tr>
128<tr><td class="num" id="LN49">49</td><td class="line"> </td></tr>
129<tr><td class="num" id="LN50">50</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>;</td></tr>
130<tr><td class="num" id="LN51">51</td><td class="line">}</td></tr>
131<tr><td class="num" id="LN52">52</td><td class="line"> </td></tr>
132<tr><td class="num" id="LN53">53</td><td class="line"> </td></tr>
133<tr><td class="num" id="LN54">54</td><td class="line"><span class='comment'>// Do</span></td></tr>
134<tr><td class="num" id="LN55">55</td><td class="line">status_t</td></tr>
135<tr><td class="num" id="LN56">56</td><td class="line">SetStringJob::Do()</td></tr>
136<tr><td class="num" id="LN57">57</td><td class="line">{</td></tr>
137<tr><td class="num" id="LN58">58</td><td class="line"> int32 changeCounter = fPartition-&gt;ChangeCounter();</td></tr>
138<tr><td class="num" id="LN59">59</td><td class="line"> int32 childChangeCounter = (<span class="mrange">fChild</span> ? fChild-&gt;ChangeCounter() : 0);</td></tr>
139<tr><td class="num"></td><td class="line"><div id="Path1" class="msg msgEvent" style="margin-left:37ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexEvent">1</div></td><td>Assuming pointer value is null</td><td><div class="PathNav"><a href="#Path2" title="Next event (2)">&#x2192;</a></div></td></tr></table></div></td></tr>
140<tr><td class="num"></td><td class="line"><div id="Path2" class="msg msgControl" style="margin-left:37ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">2</div></td><td><div class="PathNav"><a href="#Path1" title="Previous event (1)">&#x2190;</a></div></td></td><td>'?' condition is false</td><td><div class="PathNav"><a href="#Path3" title="Next event (3)">&#x2192;</a></div></td></tr></table></div></td></tr>
141<tr><td class="num" id="LN60">60</td><td class="line"> status_t error;</td></tr>
142<tr><td class="num" id="LN61">61</td><td class="line"> <span class='keyword'>bool</span> updateChildChangeCounter = <span class='keyword'>false</span>;</td></tr>
143<tr><td class="num" id="LN62">62</td><td class="line"> </td></tr>
144<tr><td class="num" id="LN63">63</td><td class="line"> <span class='keyword'>switch</span> (fJobType) {</td></tr>
145<tr><td class="num"></td><td class="line"><div id="Path3" class="msg msgControl" style="margin-left:9ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">3</div></td><td><div class="PathNav"><a href="#Path2" title="Previous event (2)">&#x2190;</a></div></td></td><td>Control jumps to 'case B_DISK_DEVICE_JOB_SET_NAME:' at line 64</td><td><div class="PathNav"><a href="#EndPath" title="Next event (4)">&#x2192;</a></div></td></tr></table></div></td></tr>
146<tr><td class="num" id="LN64">64</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_NAME:</td></tr>
147<tr><td class="num" id="LN65">65</td><td class="line"> error = _kern_set_partition_name(fPartition-&gt;PartitionID(),</td></tr>
148<tr><td class="num" id="LN66">66</td><td class="line"> &amp;changeCounter, <span class="mrange">fChild</span>-&gt;PartitionID(), &amp;childChangeCounter,</td></tr>
149<tr><td class="num"></td><td class="line"><div id="EndPath" class="msg msgEvent" style="margin-left:49ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexEvent">4</div></td><td><div class="PathNav"><a href="#Path3" title="Previous event (3)">&#x2190;</a></div></td></td><td>Called C++ object pointer is null</td></tr></table></div></td></tr>
150<tr><td class="num" id="LN67">67</td><td class="line"> fString);</td></tr>
151<tr><td class="num" id="LN68">68</td><td class="line"> updateChildChangeCounter = <span class='keyword'>true</span>;</td></tr>
152<tr><td class="num" id="LN69">69</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
153<tr><td class="num" id="LN70">70</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_CONTENT_NAME:</td></tr>
154<tr><td class="num" id="LN71">71</td><td class="line"> error = _kern_set_partition_content_name(fPartition-&gt;PartitionID(),</td></tr>
155<tr><td class="num" id="LN72">72</td><td class="line"> &amp;changeCounter, fString);</td></tr>
156<tr><td class="num" id="LN73">73</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
157<tr><td class="num" id="LN74">74</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_TYPE:</td></tr>
158<tr><td class="num" id="LN75">75</td><td class="line"> error = _kern_set_partition_type(fPartition-&gt;PartitionID(),</td></tr>
159<tr><td class="num" id="LN76">76</td><td class="line"> &amp;changeCounter, fChild-&gt;PartitionID(), &amp;childChangeCounter,</td></tr>
160<tr><td class="num" id="LN77">77</td><td class="line"> fString);</td></tr>
161<tr><td class="num" id="LN78">78</td><td class="line"> updateChildChangeCounter = <span class='keyword'>true</span>;</td></tr>
162<tr><td class="num" id="LN79">79</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
163<tr><td class="num" id="LN80">80</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_PARAMETERS:</td></tr>
164<tr><td class="num" id="LN81">81</td><td class="line"> error = _kern_set_partition_parameters(fPartition-&gt;PartitionID(),</td></tr>
165<tr><td class="num" id="LN82">82</td><td class="line"> &amp;changeCounter, fChild-&gt;PartitionID(), &amp;childChangeCounter,</td></tr>
166<tr><td class="num" id="LN83">83</td><td class="line"> fString);</td></tr>
167<tr><td class="num" id="LN84">84</td><td class="line"> updateChildChangeCounter = <span class='keyword'>true</span>;</td></tr>
168<tr><td class="num" id="LN85">85</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
169<tr><td class="num" id="LN86">86</td><td class="line"> <span class='keyword'>case</span> B_DISK_DEVICE_JOB_SET_CONTENT_PARAMETERS:</td></tr>
170<tr><td class="num" id="LN87">87</td><td class="line"> error = _kern_set_partition_content_parameters(</td></tr>
171<tr><td class="num" id="LN88">88</td><td class="line"> fPartition-&gt;PartitionID(), &amp;changeCounter, fString);</td></tr>
172<tr><td class="num" id="LN89">89</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
173<tr><td class="num" id="LN90">90</td><td class="line"> <span class='keyword'>default</span>:</td></tr>
174<tr><td class="num" id="LN91">91</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_BAD_VALUE<span class='expansion'>((-2147483647 - 1) + 5)</span></span>;</td></tr>
175<tr><td class="num" id="LN92">92</td><td class="line"> }</td></tr>
176<tr><td class="num" id="LN93">93</td><td class="line"> </td></tr>
177<tr><td class="num" id="LN94">94</td><td class="line"> <span class='keyword'>if</span> (error != <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>)</td></tr>
178<tr><td class="num" id="LN95">95</td><td class="line"> <span class='keyword'>return</span> error;</td></tr>
179<tr><td class="num" id="LN96">96</td><td class="line"> </td></tr>
180<tr><td class="num" id="LN97">97</td><td class="line"> fPartition-&gt;SetChangeCounter(changeCounter);</td></tr>
181<tr><td class="num" id="LN98">98</td><td class="line"> <span class='keyword'>if</span> (updateChildChangeCounter)</td></tr>
182<tr><td class="num" id="LN99">99</td><td class="line"> fChild-&gt;SetChangeCounter(childChangeCounter);</td></tr>
183<tr><td class="num" id="LN100">100</td><td class="line"> </td></tr>
184<tr><td class="num" id="LN101">101</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>;</td></tr>
185<tr><td class="num" id="LN102">102</td><td class="line">}</td></tr>
186<tr><td class="num" id="LN103">103</td><td class="line"> </td></tr>
187</table></body></html>