The section for vkEnumerateInstanceLayerProperties states [1]:

On success, this command returns
 * VK_SUCCESS
 * VK_INCOMPLETE

On failure, this command returns
 * VK_ERROR_OUT_OF_HOST_MEMORY
 * VK_ERROR_OUT_OF_DEVICE_MEMORY

Always setting the layer count to zero and returning VK_SUCCESS is
valid, as even if the function is given an array in pProperties, it's
filled with zero layers

[1]: https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkEnumerateInstanceLayerProperties.htmlSigned-off-by: Victor Hermann Chiletto <v@hnn.net.br>
Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Liam Middlebrook <lmiddlebrook@nvidia.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>