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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-36810] Coverity analysis defect 104983: Unchecked return value</title>
                <link>https://jira.mongodb.org/browse/SERVER-36810</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Value returned from a function is not checked for errors before being used&lt;/p&gt;

&lt;p&gt;Defect 104983 (STATIC_C)&lt;br/&gt;
  Checker CHECKED_RETURN (subcategory none)&lt;br/&gt;
  File:  &lt;tt&gt;/src/mongo/transport/service_executor_reserved.cpp&lt;/tt&gt;&lt;br/&gt;
  Function &lt;tt&gt;mongo::transport::ServiceExecutorReserved::_startWorker()::&lt;span class=&quot;error&quot;&gt;&amp;#91;lambda() (instance 1)&amp;#93;&lt;/span&gt;::operator ()() const::&lt;span class=&quot;error&quot;&gt;&amp;#91;lambda() (instance 1)&amp;#93;&lt;/span&gt;::operator ()() const&lt;/tt&gt;&lt;br/&gt;
    /src/mongo/transport/service_executor_reserved.cpp, line: 90&lt;br/&gt;
    &lt;font color=&quot;red&quot;&gt;Calling &quot;subtractAndFetch&quot; without checking return value (as is done elsewhere 3 out of 6 times).&lt;/font&gt; &lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;                _numRunningWorkerThreads.subtractAndFetch(1);&lt;/span&gt;&lt;/pre&gt;
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</description>
                <environment></environment>
        <key id="592857">SERVER-36810</key>
            <summary>Coverity analysis defect 104983: Unchecked return value</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="jonathan.reams@mongodb.com">Jonathan Reams</assignee>
                                    <reporter username="xgen-internal-coverity">Coverity Collector User</reporter>
                        <labels>
                            <label>coverity</label>
                    </labels>
                <created>Wed, 22 Aug 2018 20:18:10 +0000</created>
                <updated>Sun, 29 Oct 2023 22:28:44 +0000</updated>
                            <resolved>Fri, 14 Sep 2018 13:41:57 +0000</resolved>
                                                    <fixVersion>4.1.4</fixVersion>
                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2016824" author="xgen-internal-githook" created="Thu, 27 Sep 2018 19:44:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jonathan Reams&apos;, &apos;email&apos;: &apos;jbreams@mongodb.com&apos;, &apos;username&apos;: &apos;jbreams&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36810&quot; title=&quot;Coverity analysis defect 104983: Unchecked return value&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36810&quot;&gt;&lt;del&gt;SERVER-36810&lt;/del&gt;&lt;/a&gt; fix unused return value for coverity&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 4fe0de9a46492e9fa747e88234e483d172d9c410.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5c7428d4ef708d2d627ebe63c4c97007e8329582&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5c7428d4ef708d2d627ebe63c4c97007e8329582&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2002957" author="xgen-internal-githook" created="Fri, 14 Sep 2018 13:41:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jonathan Reams&apos;, &apos;email&apos;: &apos;jbreams@mongodb.com&apos;, &apos;username&apos;: &apos;jbreams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36810&quot; title=&quot;Coverity analysis defect 104983: Unchecked return value&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36810&quot;&gt;&lt;del&gt;SERVER-36810&lt;/del&gt;&lt;/a&gt; fix unused return value for coverity&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4fe0de9a46492e9fa747e88234e483d172d9c410&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4fe0de9a46492e9fa747e88234e483d172d9c410&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2000155" author="greg.mckeon" created="Tue, 11 Sep 2018 23:49:58 +0000"  >&lt;p&gt;CR: &lt;a href=&quot;https://mongodbcr.appspot.com/245120001/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://mongodbcr.appspot.com/245120001/&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1983091" author="milkie" created="Wed, 22 Aug 2018 20:19:43 +0000"  >&lt;p&gt;Should we assert that we don&apos;t go below zero for this subtractAndFetch?&lt;/p&gt;</comment>
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