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input: fix access to invalid resource

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the keyboard focus surface may not have a valid resource (server side
surface or a surface surviving its client), so check if it is valid
before using it.

Acked-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Giulio Camuffo 2014-10-10 23:46:50 +03:00 • committed by Pekka Paalanen
parent 0fd6d4ec53
commit de77e32b10
1 changed files with 1 additions and 1 deletions
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2
src/input.c
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@ -1800,7 +1800,7 @@ seat_get_keyboard(struct wl_client *client, struct wl_resource *resource,
seat->keyboard->focus_serial);
}
if (seat->keyboard->focus &&
if (seat->keyboard->focus && seat->keyboard->focus->resource &&
wl_resource_get_client(seat->keyboard->focus->resource) == client) {
struct weston_surface *surface =
(struct weston_surface *) seat->keyboard->focus;