D17065: Fix mem leak found with asan

[Laurent Montel]

mlaurent created this revision.
Herald added a project: Frameworks.
Herald added a subscriber: kde-frameworks-devel.
mlaurent requested review of this revision.

REVISION SUMMARY
    Fix mem when I used dolphin
    
    #0 0x7fa8cd24d900 in operator new(unsigned long) (/usr/lib64/libasan.so.5+0xed900)
    #1 0x7fa8cbc89052 in KFilePlacesModel::Private::Private(KFilePlacesModel*) /compile/kde5/framework/frameworks/kio/src/filewidgets/kfileplacesmodel.cpp:172
    #2 0x7fa8cbc81703 in KFilePlacesModel::KFilePlacesModel(QString const&, QObject*) /compile/kde5/framework/frameworks/kio/src/filewidgets/kfileplacesmodel.cpp:257
    #3 0x7fa8ccf83a14 in DolphinPlacesModelSingleton::DolphinPlacesModelSingleton() /compile/kde5/framework/kde/applications/dolphin/src/dolphinplacesmodelsingleton.cpp:26
    #4 0x7fa8ccf83b9c in DolphinPlacesModelSingleton::instance() /compile/kde5/framework/kde/applications/dolphin/src/dolphinplacesmodelsingleton.cpp:33

TEST PLAN
    Relaunch dolphin with fix + asan => no problem

REPOSITORY
  R241 KIO

BRANCH
  fix_mem_leak (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D17065

AFFECTED FILES
  src/filewidgets/kfileplacesmodel.cpp

To: mlaurent
Cc: kde-frameworks-devel, michaelh, ngraham, bruns
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