D6332: [kcms/touchpad] Fix warning 'returning reference to temporary'

[Christoph Feck]

This revision was automatically updated to reflect the committed changes.
Closed by commit R119:838777eaa6f0: Fix warning 'returning reference to temporary' (authored by cfeck).

REPOSITORY
  R119 Plasma Desktop

CHANGES SINCE LAST UPDATE
  https://phabricator.kde.org/D6332?vs=15721&id=15752

REVISION DETAIL
  https://phabricator.kde.org/D6332

AFFECTED FILES
  kcms/touchpad/src/backends/kwin_wayland/kwinwaylandbackend.h
  kcms/touchpad/src/backends/x11/xlibbackend.h
  kcms/touchpad/src/touchpadbackend.h

To: cfeck, #plasma, subdiff, knambiar, davidedmundson
Cc: plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart, lukas
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