two effect crash fixes

Review Request #123865 - Created May 20, 2015 and submitted

Information
Thomas Lübking
kwin
5.3
347900
Reviewers
kwin
graesslin

commit 77cde71fca03be919666e8d94bd0f3085c3131fa

fix presentwindows crash on disabling closebuttons

m_closeWindow "dangles" and protects m_closeView access
in postPaintScreen

commit ce064de3f2fd6409a834e67156e1353644cf1536

no VBO upload for zero vertex count

causes out of bounds segfault

  
Martin Flöser
Thomas Lübking
Review request changed

Status: Closed (submitted)

Change Summary:

Submitted with commit ae31aaaa13bef41d2f4583e2ed452b2136c8508e by Thomas Lübking to branch Plasma/5.3.
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