From 0c210a5e68ea611b7520da6a2bf9c290a1faf571 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Fri, 15 Oct 2021 19:34:03 +0200
Subject: [PATCH] Handle present events with NULL timespec field

See [1].

[1]: https://github.com/swaywm/wlroots/pull/3245
---
 sway/desktop/output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sway/desktop/output.c b/sway/desktop/output.c
index 8cdd47f54..edec71ad1 100644
--- a/sway/desktop/output.c
+++ b/sway/desktop/output.c
@@ -827,7 +827,7 @@ static void handle_present(struct wl_listener *listener, void *data) {
 	struct sway_output *output = wl_container_of(listener, output, present);
 	struct wlr_output_event_present *output_event = data;
 
-	if (!output->enabled) {
+	if (!output->enabled || !output_event->presented) {
 		return;
 	}