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gdk: Fix wl_output accounting on tablet devices

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The code managing this accounting mixed seat and tablet output lists,
can't bode well. Fixes invalid reads on list elements, as there are
dangling pointers.

Closes: https://gitlab.gnome.org/GNOME/gtk/issues/2157
This commit is contained in:
Carlos Garnacho 2019-10-08 17:46:38 +02:00
parent 83eeeb6a19
commit f354a7787a
1 changed files with 2 additions and 2 deletions
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4
gdk/wayland/gdkdevice-wayland.c
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@ -4490,7 +4490,7 @@ pointer_surface_enter (void *data,
if (tablet)
{
tablet->pointer_info.pointer_surface_outputs =
g_slist_append (seat->pointer_info.pointer_surface_outputs, output);
g_slist_append (tablet->pointer_info.pointer_surface_outputs, output);
}
else
{
@ -4519,7 +4519,7 @@ pointer_surface_leave (void *data,
if (tablet)
{
tablet->pointer_info.pointer_surface_outputs =
g_slist_remove (seat->pointer_info.pointer_surface_outputs, output);
g_slist_remove (tablet->pointer_info.pointer_surface_outputs, output);
}
else
{