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Fix access after delete with Harfbuzz NG code path. 

Remove reference to released font-engine so we don't risk returning it
later.

Change-Id: I741a741567a079818c7f414ac1f9c0b5a9677322
Task-number: QTBUG-36522
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
bb10
Allan Sandfeld Jensen 2014-01-29 16:47:08 +01:00 committed by The Qt Project
parent 64d95e3df2
commit f34e080063
1 changed files with 3 additions and 1 deletions
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4
src/gui/text/qtextengine.cpp
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@ -1875,8 +1875,10 @@ QFontEngine *QTextEngine::fontEngine(const QScriptItem &si, QFixed *ascent, QFix
feCache.prevFontEngine = engine;
feCache.prevScript = script;
engine->ref.ref();
if (feCache.prevScaledFontEngine)
if (feCache.prevScaledFontEngine) {
releaseCachedFontEngine(feCache.prevScaledFontEngine);
feCache.prevScaledFontEngine = 0;
}
}
if (si.analysis.flags & QFont::SmallCaps) {
if (feCache.prevScaledFontEngine) {