From 8b2255b35cbf754d8646152738ad10e2d044a7ff Mon Sep 17 00:00:00 2001
From: jackun <jack.un@gmail.com>
Date: Tue, 16 Feb 2021 11:22:21 +0200
Subject: [PATCH] Fix crash on destroying NULL swapchain

Vulkan spec allows calling vkDestroySwapchainKHR with VK_NULL_HANDLE swapchain.

mesa MR#5616
---
 src/vulkan.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/vulkan.cpp b/src/vulkan.cpp
index 0dc1749..306e105 100644
--- a/src/vulkan.cpp
+++ b/src/vulkan.cpp
@@ -1837,6 +1837,12 @@ static void overlay_DestroySwapchainKHR(
     VkSwapchainKHR                              swapchain,
     const VkAllocationCallbacks*                pAllocator)
 {
+   if (swapchain == VK_NULL_HANDLE) {
+      struct device_data *device_data = FIND(struct device_data, device);
+      device_data->vtable.DestroySwapchainKHR(device, swapchain, pAllocator);
+      return;
+   }
+
    struct swapchain_data *swapchain_data =
       FIND(struct swapchain_data, swapchain);