DAQ: fix noninitialized pointer in input source

[smorovic]

PR description:

fix for a warning reported in issue:
#40946

PR validation:

None. Affected code is not used by default (production). Warning should be resolved.

[cmsbuild]

-code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-40953/34436

• This PR adds an extra 24KB to repository

Code check has found code style and quality issues which could be resolved by applying following patch(s)

• code-format:
  https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-40953/34436/code-format.patch
  e.g. curl -k https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-40953/34436/code-format.patch | patch -p1
  You can also run scram build code-format to apply code format directly

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-40953/34437

• This PR adds an extra 24KB to repository

[cmsbuild]

A new Pull Request was created by @smorovic (Srecko Morovic) for master.

It involves the following packages:

• EventFilter/Utilities (daq)

@cmsbuild, @emeschi, @smorovic can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @missirol this is something you requested to watch as well.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.

cms-bot commands are listed here

[smorovic]

@cmsbuild please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-1b82d1/31052/summary.html
COMMIT: ff6fa44
CMSSW: CMSSW_13_1_X_2023-03-03-1100/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/40953/31052/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @eyigitba Modify EMTF unpacker to support new reduced DAQ window for 2023 data taking #40931
• @bsunanda Run3-sim139 Replace cout with G4cout in SimG4CMS/Muon #40926
• @abdoulline Activating v7 of HF ShowerLibrary  #40933
• @fabiocos MTD validation: ETL digi per LGAD multiplicity monitoring #40913

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-1b82d1/31052/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-1b82d1/31052/git-merge-result

Comparison Summary

Summary:

• You potentially added 36 lines to the logs
• Reco comparison results: 5 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3529699
• DQMHistoTests: Total failures: 7
• DQMHistoTests: Total nulls: 28
• DQMHistoTests: Total successes: 3529642
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 6.727 KiB( 48 files compared)
• DQMHistoSizes: changed ( 20834.0,... ): 0.961 KiB MTD/ETL
• Checked 213 log files, 164 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[smorovic]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @rappoccio (and backports should be raised in the release meeting by the corresponding L2)

[perrotta]

+1