Samplers, blend states, rasterizer states and depth stencil states can
be retrieved from the cache in struct d3d_device even after the
reference count reaches zero, causing memory corruption.
Signed-off-by: Jan Sikorski <jsikorski@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>