[PATCH 0/1] MR6684: win32u: Avoid crashing when creating a new layered window surface.

[Rémi Bernon]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57311

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6684

[PATCH 1/1] win32u: Avoid crashing when creating a new layered window surface.

[Rémi Bernon]

From: Rémi Bernon <rbernon(a)codeweavers.com>

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57311
---
 dlls/win32u/window.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c
index f67ddc2903c..405c6cb0f98 100644
--- a/dlls/win32u/window.c
+++ b/dlls/win32u/window.c
@@ -1941,9 +1941,8 @@ static struct window_surface *get_window_surface( HWND hwnd, UINT swp_flags, BOO
 
     if ((create_opaque && is_layered) || (create_layered && !is_layered))
     {
-        window_surface_release( new_surface );
-        new_surface = &dummy_surface;
-        window_surface_add_ref( new_surface );
+        if (new_surface) window_surface_release( new_surface );
+        window_surface_add_ref( (new_surface = &dummy_surface) );
     }
     else if (!create_opaque && is_layered) create_layered = TRUE;
 
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/6684