winevulkan: Fix vkEnumerateInstanceExtensionProperties() behavior when no Vulkan driver is present.

Signed-off-by: Brendan Shanks <bshanks@codeweavers.com> Signed-off-by: Liam Middlebrook <lmiddlebrook@nvidia.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

winevulkan: Fix vkEnumerateInstanceExtensionProperties() behavior when no Vulkan driver is present.
c5675ec6 · Brendan Shanks · Alexandre Julliard · 4fd45333 · c5675ec6
Commit c5675ec6 authored Aug 14, 2020 by Brendan Shanks Committed by Alexandre Julliard Aug 18, 2020
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vulkan.c dlls/winevulkan/vulkan.c +4 -1

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--- a/dlls/winevulkan/vulkan.c
+++ b/dlls/winevulkan/vulkan.c
@@ -793,7 +793,10 @@ VkResult WINAPI wine_vkEnumerateInstanceExtensionProperties(const char *layer_na

    wine_vk_init_once();
    if (!vk_funcs)
-        return VK_ERROR_INITIALIZATION_FAILED;
+    {
+        *count = 0;
+        return VK_SUCCESS;
+    }

    res = vk_funcs->p_vkEnumerateInstanceExtensionProperties(NULL, &num_host_properties, NULL);
    if (res != VK_SUCCESS)