[Mesa-dev] [PATCH 2/2] vulkan/wsi/x11: don't crash on null visual

[Arda Coskunses]

When application window closed unexpectedly due to
lost window visualtypes getting invlaid parameters
which is causing a crash. Necessary check is added
to prevent the crash.
---
 src/vulkan/wsi/wsi_common_x11.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/vulkan/wsi/wsi_common_x11.c b/src/vulkan/wsi/wsi_common_x11.c
index afb7809..8afff8b 100644
--- a/src/vulkan/wsi/wsi_common_x11.c
+++ b/src/vulkan/wsi/wsi_common_x11.c
@@ -354,6 +354,9 @@ x11_surface_get_capabilities(VkIcdSurfaceBase *icd_surface,
    xcb_visualtype_t *visual =
       get_visualtype_for_window(conn, window, &visual_depth);
 
+   if (!visual)
+      return VK_ERROR_OUT_OF_HOST_MEMORY;
+
    geom = xcb_get_geometry_reply(conn, geom_cookie, &err);
    if (geom) {
       VkExtent2D extent = { geom->width, geom->height };
-- 
2.7.4