D18508: Somewhat guard failing to load backend

[David Edmundson]

davidedmundson created this revision.
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REVISION SUMMARY
  BackendManager::loadBackendPlugin can return a nullptr.
  We currently use that pointer regardless.
  
  The caller of this method ConfigOperationPrivate::loadBackend does
  handle a nullptr and shows a relevant warning message.
  
  BUG: 403568

TEST PLAN
  Not done

REPOSITORY
  R110 KScreen Library

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D18508

AFFECTED FILES
  src/backendmanager.cpp

To: davidedmundson, #plasma
Cc: plasma-devel, jraleigh, GB_2, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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