Paul Gofman : mshtml: Handle NULL nsstyle in HTMLWindow7_getComputedStyle().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 362eed3ae30e17da64888407140334925499071c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=362eed3ae30e17da64888407140334925499071c

Author: Paul Gofman <pgofman at codeweavers.com>
Date:   Mon Jun 28 22:29:46 2021 +0300

mshtml: Handle NULL nsstyle in HTMLWindow7_getComputedStyle().

Signed-off-by: Paul Gofman <pgofman at codeweavers.com>
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/mshtml/htmlwindow.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dlls/mshtml/htmlwindow.c b/dlls/mshtml/htmlwindow.c
index 4c57d457e41..0ca4cd6397e 100644
--- a/dlls/mshtml/htmlwindow.c
+++ b/dlls/mshtml/htmlwindow.c
@@ -2364,6 +2364,13 @@ static HRESULT WINAPI HTMLWindow7_getComputedStyle(IHTMLWindow7 *iface, IHTMLDOM
         return E_FAIL;
     }
 
+    if (!nsstyle)
+    {
+        FIXME("nsIDOMWindow_GetComputedStyle returned NULL nsstyle.\n");
+        *p = NULL;
+        return S_OK;
+    }
+
     hres = create_computed_style(nsstyle, dispex_compat_mode(&This->inner_window->event_target.dispex), p);
     nsIDOMCSSStyleDeclaration_Release(nsstyle);
     return hres;