Only create the GLXYSeriesData if there is no existing data

This ensures that there is no memory leak due to unnecessary
creation of the GLXYSeriesData when setting the series data.

Change-Id: Iec7966bbbf53e595ead780462c89bb3e1205854e
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
(cherry picked from commit eaf63689403df7f122591795d80ef126b8fb5eaa)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/chartsqml2/declarativeopenglrendernode.cpp b/src/chartsqml2/declarativeopenglrendernode.cpp
index 6d2baf20..013cbe4f 100644
--- a/src/chartsqml2/declarativeopenglrendernode.cpp
+++ b/src/chartsqml2/declarativeopenglrendernode.cpp
@@ -229,7 +229,8 @@ void DeclarativeOpenGLRenderNode::setSeriesData(bool mapDirty, const GLXYDataMap
             GLXYSeriesData *data = oldMap.take(i.key());
             const GLXYSeriesData *newData = i.value();
             if (!data || newData->dirty) {
-                data = new GLXYSeriesData;
+                if (!data)
+                    data = new GLXYSeriesData;
                 *data = *newData;
             }
             m_xyDataMap.insert(i.key(), data);