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From c3804f86e0a75c0c8402127a5b01bc7a858e6492 Mon Sep 17 00:00:00 2001
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From: Volker Hilsheimer <volker.hilsheimer@qt.io>
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Date: Wed, 17 Mar 2021 16:52:21 +0100
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Subject: [PATCH 12/20] QQuickItemAnimation: close potential memory leak
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Fix static analyzer warning bff6cb4333f531d5a72f7bf6dc1485f6.
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If ownership of viaData is not passed to the viaAction, then the object
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might be leaked. Use std::unique_ptr to make ownership transfer explicit
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and implicitly delete unowned objects.
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Pick-to: 6.1 5.15
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Change-Id: I89f2a6b630941a98a74db302bc1ab08055c71974
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Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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(cherry picked from commit 78aea267209c34abeb4895712dc76c923aa46165)
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---
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src/quick/items/qquickitemanimation.cpp | 11 ++++-------
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1 file changed, 4 insertions(+), 7 deletions(-)
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diff --git a/src/quick/items/qquickitemanimation.cpp b/src/quick/items/qquickitemanimation.cpp
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index 23694e2de3..dfb56ccc00 100644
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--- a/src/quick/items/qquickitemanimation.cpp
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+++ b/src/quick/items/qquickitemanimation.cpp
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@@ -230,8 +230,8 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
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{
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Q_D(QQuickParentAnimation);
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- QQuickParentAnimationData *data = new QQuickParentAnimationData;
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- QQuickParentAnimationData *viaData = new QQuickParentAnimationData;
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+ std::unique_ptr<QQuickParentAnimationData> data(new QQuickParentAnimationData);
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+ std::unique_ptr<QQuickParentAnimationData> viaData(new QQuickParentAnimationData);
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bool hasExplicit = false;
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if (d->target && d->newParent) {
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@@ -377,8 +377,8 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
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QParallelAnimationGroupJob *ag = new QParallelAnimationGroupJob;
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if (d->via)
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- viaAction->setAnimAction(viaData);
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- targetAction->setAnimAction(data);
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+ viaAction->setAnimAction(viaData.release());
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+ targetAction->setAnimAction(data.release());
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//take care of any child animations
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bool valid = d->defaultProperty.isValid();
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@@ -405,9 +405,6 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
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topLevelGroup->appendAnimation(d->via ? viaAction : targetAction);
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}
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return initInstance(topLevelGroup);
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- } else {
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- delete data;
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- delete viaData;
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}
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return nullptr;
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}
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--
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2.35.1
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