Clear X11 structure before use

This squelches valgrind warnings about uninitialized reads

Task-number: QT-3973
Reviewed-by: Robert Griebl

1 files changed, 4 insertions, 1 deletions

diff --git a/src/gui/kernel/qmotifdnd_x11.cpp b/src/gui/kernel/qmotifdnd_x11.cpp
index 333445501d..3b79129468 100644
--- a/src/gui/kernel/qmotifdnd_x11.cpp
+++ b/src/gui/kernel/qmotifdnd_x11.cpp
@@ -385,7 +385,10 @@ static void DndReadSourceProperty(Display * dpy,
 static void DndWriteReceiverProperty(Display * dpy, Window window,
                                      unsigned char protocol_style)
 {
-    DndReceiverProp receiver_prop ;
+    DndReceiverProp receiver_prop;
+
+    // squelch potential valgrind errors about uninitialized reads
+    memset(&receiver_prop, 0, sizeof(receiver_prop));
 
     receiver_prop.byte_order = DndByteOrder() ;
     receiver_prop.protocol_version = DND_PROTOCOL_VERSION;