sway

commit 01b8e171b8dd2dbdda1b1a652c39022602cd9dfb
parent 54a835e962b45683e1def4a9aaf1c1371fb4aa28
Author: emersion <contact@emersion.fr>
Date:   Wed,  3 Oct 2018 14:17:28 +0200

Merge pull request #2757 from RyanDwyer/check-focus-stack-empty

Add sanity check for empty focus stack
Diffstat:
M
sway/input/seat.c
 | 
3
+++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/sway/input/seat.c b/sway/input/seat.c
@@ -952,6 +952,9 @@ struct sway_node *seat_get_focus(struct sway_seat *seat) {
 	if (!seat->has_focus) {
 		return NULL;
 	}
+	if (wl_list_length(&seat->focus_stack) == 0) {
+		return NULL;
+	}
 	struct sway_seat_node *current =
 		wl_container_of(seat->focus_stack.next, current, link);
 	return current->node;