From ad5175118b7421e998631ea1875cc3397ff08edd Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Tue, 3 Jan 2023 10:59:57 +0100
Subject: [PATCH] backend/x11: fix initial value of wlr_x11_buffer.n_busy

We lock the buffer there, so we need to initialize the n_busy
count to 1 as well.

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3556
(cherry picked from commit bc8260f377b5d1b254cbd3b0eacf5e51aeb005e5)
---
 backend/x11/output.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/backend/x11/output.c b/backend/x11/output.c
index ea2d16fc9..e149403e3 100644
--- a/backend/x11/output.c
+++ b/backend/x11/output.c
@@ -250,6 +250,7 @@ static struct wlr_x11_buffer *create_x11_buffer(struct wlr_x11_output *output,
 		return NULL;
 	}
 	buffer->buffer = wlr_buffer_lock(wlr_buffer);
+	buffer->n_busy = 1;
 	buffer->pixmap = pixmap;
 	buffer->x11 = x11;
 	wl_list_insert(&output->buffers, &buffer->link);