Yuxuan Shui : urlmon: Fix NULL dereference in BindProtocol_UnlockRequest.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 1e8393f976d11bf831fa35466f805b73b63a06c1
URL:    https://gitlab.winehq.org/wine/wine/-/commit/1e8393f976d11bf831fa35466f805b7...

Author: Yuxuan Shui <yshui(a)codeweavers.com>
Date:   Tue Sep  5 17:29:50 2023 +0100

urlmon: Fix NULL dereference in BindProtocol_UnlockRequest.

---

 dlls/urlmon/bindprot.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dlls/urlmon/bindprot.c b/dlls/urlmon/bindprot.c
index b09acdd5c3a..ec52ac5e999 100644
--- a/dlls/urlmon/bindprot.c
+++ b/dlls/urlmon/bindprot.c
@@ -815,7 +815,9 @@ static HRESULT WINAPI ProtocolHandler_UnlockRequest(IInternetProtocol *iface)
 
     TRACE("(%p)\n", This);
 
-    return IInternetProtocol_UnlockRequest(This->protocol);
+    if (This->protocol)
+        return IInternetProtocol_UnlockRequest(This->protocol);
+    return S_OK;
 }
 
 static const IInternetProtocolVtbl InternetProtocolHandlerVtbl = {