Add a check to please coverity.

Fixes #23496.

src/frontends/qt4/GuiView.cpp

@@ -2751,9 +2751,13 @@ bool GuiView::closeWorkArea(GuiWorkArea * wa)
 bool GuiView::closeBuffer()
 {
 	GuiWorkArea * wa = currentMainWorkArea();
+	// coverity complained about this
+	// it seems unnecessary, but perhaps is worth the check
+	LASSERT(wa, return false);
+
 	setCurrentWorkArea(wa);
 	Buffer & buf = wa->bufferView().buffer();
-	return wa && closeWorkArea(wa, !buf.parent());
+	return closeWorkArea(wa, !buf.parent());
 }
 
 

src/frontends/qt4/InGuiThread.h

@@ -52,7 +52,8 @@ class InGuiThread : private IntoGuiThreadMover
 {
 public:
 
-	InGuiThread() {}
+	// please coverity by explicitly initalizing this variable.
+	InGuiThread() : return_value_(R()) {}
 
 	template<class F>
 	R call(F f)