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desktop-shell: remove surface destroy listener when focus state is destroyed 

Changing the focused surface did remove the surface_destroy_listener from the wl_signal list,
but destroying the focus state did not. As a result, sometimes the same listener would be added
to two surfaces, which would join their wl_signal lists together, which would cause infinite
loops and use-after-frees when closing desktop surfaces.
This commit is contained in:
Greg V 2018-12-07 01:33:34 +03:00 committed by Daniel Stone
parent ec3f779aa7
commit 15d3d3004b
1 changed files with 4 additions and 0 deletions
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4
desktop-shell/shell.c
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@ -663,6 +663,10 @@ focus_state_surface_destroy(struct wl_listener *listener, void *data)
next = get_default_view(main_surface);
if (next) {
if (state->keyboard_focus) {
wl_list_remove(&state->surface_destroy_listener.link);
wl_list_init(&state->surface_destroy_listener.link);
}
state->keyboard_focus = NULL;
activate(state->shell, next, state->seat,
WESTON_ACTIVATE_FLAG_CONFIGURE);