From 7ba335063f492aa62bcdd8d34a4f3451f5fa3671 Mon Sep 17 00:00:00 2001
From: Guido Cella <guido@guidocella.xyz>
Date: Sun, 13 Sep 2026 08:24:13 +0200
Subject: [PATCH] don't crash when clicking an empty area

If l is not initialized, accessing
l->layer_surface->current.keyboard_interactive causes a segmentation
fault. This was hard to see because c above was never initialized but
never caused a crash, and dwl also didn't crash building with ASan.

Also initialize c to be safe.

Fixes 4c54bd8.
Fixes https://codeberg.org/dwl/dwl/issues/1225.
---
 dwl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dwl.c b/dwl.c
index fa8c8ae..8d32c08 100644
--- a/dwl.c
+++ b/dwl.c
@@ -643,8 +643,8 @@ buttonpress(struct wl_listener *listener, void *data)
 	struct wlr_pointer_button_event *event = data;
 	struct wlr_keyboard *keyboard;
 	uint32_t mods;
-	Client *c;
-	LayerSurface *l;
+	Client *c = NULL;
+	LayerSurface *l = NULL;
 	const Button *b;
 
 	wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);