Gabriel Ivăncescu : mshtml: Fix classList toggle() when return value pointer is NULL.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ce453e4210821fd998a9cb657561f2ee7c8f1e20
URL:    https://gitlab.winehq.org/wine/wine/-/commit/ce453e4210821fd998a9cb657561f2e...

Author: Gabriel Ivăncescu <gabrielopcode(a)gmail.com>
Date:   Mon May 29 21:58:37 2023 +0300

mshtml: Fix classList toggle() when return value pointer is NULL.

Signed-off-by: Gabriel Ivăncescu <gabrielopcode(a)gmail.com>

---

 dlls/mshtml/htmlelem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/mshtml/htmlelem.c b/dlls/mshtml/htmlelem.c
index 21a1ad69254..5dd812c9ca6 100644
--- a/dlls/mshtml/htmlelem.c
+++ b/dlls/mshtml/htmlelem.c
@@ -7568,7 +7568,8 @@ static HRESULT WINAPI token_list_remove(IWineDOMTokenList *iface, BSTR token)
 
 static HRESULT WINAPI token_list_toggle(IWineDOMTokenList *iface, BSTR token, VARIANT_BOOL *p)
 {
-    return token_list_add_remove(iface, token, FALSE, p);
+    VARIANT_BOOL tmp;
+    return token_list_add_remove(iface, token, FALSE, p ? p : &tmp);
 }
 
 static HRESULT WINAPI token_list_contains(IWineDOMTokenList *iface, BSTR token, VARIANT_BOOL *p)