[PATCH v2 0/1] MR8788: hhctrl.ocx/help: Check for a NULL web_browser before QueryInterface.

[Jacob Czekalla (＠JacobCzekalla)]

Right now hhctrl will crash if a second one is opened due to it having a null webbrowser.

--
  v2: hhctrl.ocx/help: Check for a NULL web_browser before QueryInterface.

https://gitlab.winehq.org/wine/wine/-/merge_requests/8788

[PATCH v2 1/1] hhctrl.ocx/help: Check for a NULL web_browser before QueryInterface.

[Jacob Czekalla]

From: Jacob Czekalla

Right now hhctrl will crash if a second one is opened due to it having a null webbrowser.
---
 dlls/hhctrl.ocx/help.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/hhctrl.ocx/help.c b/dlls/hhctrl.ocx/help.c
index f1714606de5..f066d972a5b 100644
--- a/dlls/hhctrl.ocx/help.c
+++ b/dlls/hhctrl.ocx/help.c
@@ -380,6 +380,9 @@ static void hook_WebBrowserEvents2(HHInfo *info, BOOL init)
     IConnectionPoint *point;
     HRESULT hres;

+    if (!info->web_browser || !info->web_browser->web_browser)
+        return;
+
     hres = IWebBrowser2_QueryInterface(info->web_browser->web_browser, &IID_IConnectionPointContainer, (void **)&container);
     if (FAILED(hres))
         return;