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-rw-r--r--examples/datavisualization/qmloscilloscope/datasource.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/datavisualization/qmloscilloscope/datasource.cpp b/examples/datavisualization/qmloscilloscope/datasource.cpp
index f466b2b0..0bb5ec2b 100644
--- a/examples/datavisualization/qmloscilloscope/datasource.cpp
+++ b/examples/datavisualization/qmloscilloscope/datasource.cpp
@@ -45,7 +45,7 @@ void DataSource::generateData(int cacheCount, int rowCount, int columnCount,
float xMin, float xMax, float yMin, float yMax,
float zMin, float zMax)
{
- if (!cacheCount)
+ if (!cacheCount || !rowCount || !columnCount)
return;
clearData();