D29616: Fix memory errors caused by using dangling pointers to SensorClients in SensorAgent

[Jiří Paleček]

jpalecek created this revision.
jpalecek added reviewers: davidedmundson, ahiemstra.
Herald added a project: Plasma.
jpalecek requested review of this revision.

REVISION SUMMARY
  When some SensorClients are destroyed, eg. when KSysguard is closed,
   they fail to deregister themselves from SensorAgent. This may cause a
   crash when further messages arrive for them. This patch fixes that.
  
  BUG: 350140

REPOSITORY
  R106 KSysguard

REVISION DETAIL
  https://phabricator.kde.org/D29616

AFFECTED FILES
  gui/SensorBrowser.cpp
  gui/ksysguard.cpp
  gui/ksysguard.h

To: jpalecek, davidedmundson, ahiemstra
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, ragreen, ZrenBot, ngraham, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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