[PATCH 2/4] winex11.drv: Check for NULL hwnd in X11DRV_vulkan_surface_presented().

[Paul Gofman]

From: Paul Gofman

---
 dlls/winex11.drv/vulkan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/winex11.drv/vulkan.c b/dlls/winex11.drv/vulkan.c
index 14711537636..1804ba85287 100644
--- a/dlls/winex11.drv/vulkan.c
+++ b/dlls/winex11.drv/vulkan.c
@@ -220,6 +220,7 @@ static void X11DRV_vulkan_surface_presented( HWND hwnd, void *private, VkResult
     HRGN region;
     HDC hdc;

+    if (!hwnd) return;
     vulkan_surface_update_size( hwnd, surface );
     vulkan_surface_update_offscreen( hwnd, surface );