Merge pull request #3563 from vilhalmer/fix-wildcard-seat-constrain-crashes-during-reconfig

Fix wildcard seat constrain crashes during reconfig

sway/config.c

@@ -141,6 +141,11 @@ static void destroy_removed_seats(struct sway_config *old_config,
 	int i;
 	for (i = 0; i < old_config->seat_configs->length; i++) {
 		seat_config = old_config->seat_configs->items[i];
+		// Skip the wildcard seat config, it won't have a matching real seat.
+		if (strcmp(seat_config->name, "*") == 0) {
+			continue;
+		}
+
 		/* Also destroy seats that aren't present in new config */
 		if (new_config && list_seq_find(new_config->seat_configs,
 				seat_name_cmp, seat_config->name) < 0) {

sway/input/cursor.c

@@ -1459,7 +1459,11 @@ void handle_pointer_constraint(struct wl_listener *listener, void *data) {
 void sway_cursor_constrain(struct sway_cursor *cursor,
 		struct wlr_pointer_constraint_v1 *constraint) {
 	struct seat_config *config = seat_get_config(cursor->seat);
-	if (config->allow_constrain == CONSTRAIN_DISABLE) {
+	if (!config) {
+		config = seat_get_config_by_name("*");
+	}
+
+	if (!config || config->allow_constrain == CONSTRAIN_DISABLE) {
 		return;
 	}