D21915: Fix crash in the touchpad kded

[Albert Astals Cid]

aacid created this revision.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
aacid requested review of this revision.

REVISION SUMMARY
  My libinput touchpad doesn't have an enabled atom so doing
  
  *m_atoms[QLatin1Literal("enabled")].data()
  
  and then using that atom ends up with a crash
  
  So instead of asking the atom out, just pass the atom to compare in

TEST PLAN
  Unfortunately i can't really really reproduce the crash, it just happens every other day, so i can only say "this code is safer and should crash less"

REPOSITORY
  R119 Plasma Desktop

BRANCH
  Plasma/5.16

REVISION DETAIL
  https://phabricator.kde.org/D21915

AFFECTED FILES
  kcms/touchpad/src/backends/x11/libinputtouchpad.cpp
  kcms/touchpad/src/backends/x11/libinputtouchpad.h
  kcms/touchpad/src/backends/x11/synapticstouchpad.cpp
  kcms/touchpad/src/backends/x11/synapticstouchpad.h
  kcms/touchpad/src/backends/x11/xcbatom.h
  kcms/touchpad/src/backends/x11/xlibbackend.cpp
  kcms/touchpad/src/backends/x11/xlibtouchpad.h

To: aacid
Cc: plasma-devel, LeGast00n, jraleigh, fbampaloukas, GB_2, ragreen, Pitel, ZrenBot, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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