From a4c1c4815eb910d44a8657efe27543b774b28c93 Mon Sep 17 00:00:00 2001
From: Consolatis <35009135+Consolatis@users.noreply.github.com>
Date: Fri, 30 Dec 2022 01:37:32 +0100
Subject: [PATCH] src/layers.c: ensure layers_arrange() is only called with an
 output set

---
 src/layers.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/layers.c b/src/layers.c
index 54bda17a..4b2e9eb6 100644
--- a/src/layers.c
+++ b/src/layers.c
@@ -38,6 +38,7 @@ arrange_one_layer(struct output *output, const struct wlr_box *full_area,
 void
 layers_arrange(struct output *output)
 {
+	assert(output);
 	struct wlr_box full_area = { 0 };
 	wlr_output_effective_resolution(output->wlr_output,
 		&full_area.width, &full_area.height);
@@ -166,9 +167,13 @@ static void
 handle_unmap(struct wl_listener *listener, void *data)
 {
 	struct lab_layer_surface *layer = wl_container_of(listener, layer, unmap);
-	layers_arrange(layer->scene_layer_surface->layer_surface->output->data);
+	struct wlr_layer_surface_v1 *layer_surface =
+		layer->scene_layer_surface->layer_surface;
+	if (layer_surface->output) {
+		layers_arrange(layer_surface->output->data);
+	}
 	struct seat *seat = &layer->server->seat;
-	if (seat->focused_layer == layer->scene_layer_surface->layer_surface) {
+	if (seat->focused_layer == layer_surface) {
 		seat_set_focus_layer(seat, NULL);
 	}
 }