1 files changed, 10 insertions, 0 deletions
diff --git a/src/gui/kernel/qdesktopwidget.cpp b/src/gui/kernel/qdesktopwidget.cpp
index c8a4373..24b4e57 100644
--- a/src/gui/kernel/qdesktopwidget.cpp
+++ b/src/gui/kernel/qdesktopwidget.cpp
@@ -47,6 +47,11 @@ QT_BEGIN_NAMESPACE
 
 const QRect QDesktopWidget::screenGeometry(const QWidget *widget) const
 {
+    if (!widget) {
+        qWarning("QDesktopWidget::screenGeometry(): Attempt "
+                 "to get the screen geometry of a null widget");
+        return QRect();
+    }
     QRect rect = QWidgetPrivate::screenGeometry(widget);
     if (rect.isNull())
         return screenGeometry(screenNumber(widget));
@@ -55,6 +60,11 @@ const QRect QDesktopWidget::screenGeometry(const QWidget *widget) const
 
 const QRect QDesktopWidget::availableGeometry(const QWidget *widget) const
 {
+    if (!widget) {
+        qWarning("QDesktopWidget::availableGeometry(): Attempt "
+                 "to get the available geometry of a null widget");
+        return QRect();
+    }
     QRect rect = QWidgetPrivate::screenGeometry(widget);
     if (rect.isNull())
         return availableGeometry(screenNumber(widget));