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touch-input: Don't dereference NULL pointer during full screen fade

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If a full screen program is fading out and a touch start happens, it
will result in a NULL pointer dereference when weston_touch_set_focus
tries to derefernce view->surface->resource.

Instead, this patch sets the focus to NULL, which should be the
same as if the program was destroyed during the touch anyway.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=78706
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Derek Foreman
2014-09-04 10:23:05 -05:00
committed by Pekka Paalanen
parent bfb4ade1a0
commit 362656bfa3
2 changed files with 13 additions and 3 deletions
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desktop-shell/shell.c
+5 -1
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@@ -4444,10 +4444,14 @@ fullscreen_binding(struct weston_seat *seat, uint32_t time, uint32_t button, voi
static void
touch_move_binding(struct weston_seat *seat, uint32_t time, void *data)
{
struct weston_surface *focus = seat->touch->focus->surface;
struct weston_surface *focus;
struct weston_surface *surface;
struct shell_surface *shsurf;
if (seat->touch->focus == NULL)
return;
focus = seat->touch->focus->surface;
surface = weston_surface_get_main_surface(focus);
if (surface == NULL)
return;