From 6135e55c58959626ec6bbf0539fd3636c961106f Mon Sep 17 00:00:00 2001
From: Consolatis <35009135+Consolatis@users.noreply.github.com>
Date: Wed, 30 Mar 2022 14:59:24 +0200
Subject: [PATCH] cursor.c: Do not segfault on missing drag icon

Observed by moving tabs in chromium wayland native
(started with --ozone-platform-hint=wayland).

Backport of 47912aebb6ff9dc197a241c89bcd78b3a9dc2dc9
---
 src/cursor.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/cursor.c b/src/cursor.c
index fba83f6b..5c8b2583 100644
--- a/src/cursor.c
+++ b/src/cursor.c
@@ -378,6 +378,11 @@ start_drag(struct wl_listener *listener, void *data)
 	seat->pressed.view = NULL;
 	seat->pressed.surface = NULL;
 	seat->drag_icon = wlr_drag->icon;
+	if (!seat->drag_icon) {
+		wlr_log(WLR_ERROR,
+			"Started drag but application did not set a drag icon");
+		return;
+	}
 	wl_signal_add(&seat->drag_icon->events.destroy, &seat->destroy_drag);
 }