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wayland/subsurface: Handle clients committing on destroyed subsurface

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A client can still commit state to a destroyed subsurface. It wont
update anything on the screen, since the subsurface will not be
visible, but mutter should still handle it and not crash.

https://bugzilla.gnome.org/show_bug.cgi?id=781391
This commit is contained in:
Jonas Ådahl 2017-04-17 13:27:35 +08:00
parent 229ac9c9dc
commit 704bd4c331
1 changed files with 1 additions and 1 deletions
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src/wayland/meta-wayland-surface.c
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@ -615,7 +615,7 @@ subsurface_role_get_toplevel (MetaWaylandSurfaceRole *surface_role)
meta_wayland_surface_role_get_surface (surface_role);
MetaWaylandSurface *parent = surface->sub.parent;
if (parent->role)
if (parent && parent->role)
return meta_wayland_surface_role_get_toplevel (parent->role);
else
return NULL;