Fixes Coverity CID 709288: Division or modulo by zero (DIVIDE_BY_ZERO)
Division by expression "STEPS" which may be zero has undefined behavior
139 avg=avg/STEPS;
...
150 return delta / STEPS;
---
thumbnailer/westleypreview.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/thumbnailer/westleypreview.cpp b/thumbnailer/westleypreview.cpp
index 8512b60..9113278 100644
--- a/thumbnailer/westleypreview.cpp
+++ b/thumbnailer/westleypreview.cpp
@@ -123,6 +123,7 @@ uint MltPreview::imageVariance(QImage image)
uint delta = 0;
uint avg = 0;
uint bytes = image.numBytes();
+ if (bytes == 0) return 0;
uint STEPS = bytes / 2;
QVarLengthArray<uchar> pivot(STEPS);
kDebug(DBG_AREA) << "Using " << STEPS << " steps\n";
--
1.7.10.4
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