qt5-qtdeclarative/0037-QQuickItemAnimation-cl...

59 lines
2.3 KiB
Diff

From 8e85afd011ea25eec0aa710481e2474dbaaee869 Mon Sep 17 00:00:00 2001
From: Volker Hilsheimer <volker.hilsheimer@qt.io>
Date: Wed, 17 Mar 2021 16:52:21 +0100
Subject: [PATCH 37/41] QQuickItemAnimation: close potential memory leak
Fix static analyzer warning bff6cb4333f531d5a72f7bf6dc1485f6.
If ownership of viaData is not passed to the viaAction, then the object
might be leaked. Use std::unique_ptr to make ownership transfer explicit
and implicitly delete unowned objects.
Pick-to: 6.1 5.15
Change-Id: I89f2a6b630941a98a74db302bc1ab08055c71974
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
(cherry picked from commit 78aea267209c34abeb4895712dc76c923aa46165)
---
src/quick/items/qquickitemanimation.cpp | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/src/quick/items/qquickitemanimation.cpp b/src/quick/items/qquickitemanimation.cpp
index 23694e2de3..dfb56ccc00 100644
--- a/src/quick/items/qquickitemanimation.cpp
+++ b/src/quick/items/qquickitemanimation.cpp
@@ -230,8 +230,8 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
{
Q_D(QQuickParentAnimation);
- QQuickParentAnimationData *data = new QQuickParentAnimationData;
- QQuickParentAnimationData *viaData = new QQuickParentAnimationData;
+ std::unique_ptr<QQuickParentAnimationData> data(new QQuickParentAnimationData);
+ std::unique_ptr<QQuickParentAnimationData> viaData(new QQuickParentAnimationData);
bool hasExplicit = false;
if (d->target && d->newParent) {
@@ -377,8 +377,8 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
QParallelAnimationGroupJob *ag = new QParallelAnimationGroupJob;
if (d->via)
- viaAction->setAnimAction(viaData);
- targetAction->setAnimAction(data);
+ viaAction->setAnimAction(viaData.release());
+ targetAction->setAnimAction(data.release());
//take care of any child animations
bool valid = d->defaultProperty.isValid();
@@ -405,9 +405,6 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
topLevelGroup->appendAnimation(d->via ? viaAction : targetAction);
}
return initInstance(topLevelGroup);
- } else {
- delete data;
- delete viaData;
}
return nullptr;
}
--
2.33.1