1 files changed, 3 insertions, 0 deletions
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index b6a21f588e..85f0dc2d92 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -678,6 +678,9 @@ qreal QPixmap::devicePixelRatio() const
 */
 void QPixmap::setDevicePixelRatio(qreal scaleFactor)
 {
+    if (isNull())
+        return;
+
     detach();
     data->setDevicePixelRatio(scaleFactor);
 }