From 033880673addca9c96abcfb09e68f855b6712b56 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Wed, 17 May 2023 09:39:39 +0200
Subject: Add null-pointer check for tall menu window under Wayland+KDE

---
 src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx b/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
index b4a5f6ebc..7864d8289 100644
--- a/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
+++ b/src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx
@@ -1754,7 +1754,7 @@ void Fl_Wayland_Window_Driver::reposition_menu_window(int x, int y) {
     *Fl_Window_Driver::menu_offset_y(pWindow) += (y - pWindow->y());
     struct wld_window *xid = fl_wl_xid(pWindow);
     wl_surface_set_opaque_region(xid->wl_surface, NULL);
-    memset(xid->buffer->draw_buffer, 0, xid->buffer->data_size);
+    if (xid->buffer) memset(xid->buffer->draw_buffer, 0, xid->buffer->data_size);
     //printf("offset_y=%d\n", *Fl_Window_Driver::menu_offset_y(pWindow));
     this->y(y);
     pWindow->redraw();
-- 
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