From b1257cefe1001598566b7efba7fe0dd13e12782f Mon Sep 17 00:00:00 2001
From: Doug Lyons <douglyons@douglyons.com>
Date: Thu, 16 Jan 2025 19:11:19 -0600
Subject: [PATCH] [NTGDI] Silence some debug log spam from GreGetObjectOwner
 when input parameter is NULL. (#7606)

CORE-19962
Co-authored-by: Timo Kreuzer <timo.kreuzer@reactos.org>
---
 win32ss/gdi/ntgdi/gdiobj.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/win32ss/gdi/ntgdi/gdiobj.c b/win32ss/gdi/ntgdi/gdiobj.c
index 07c16e0bcae..00c85f5f9dc 100644
--- a/win32ss/gdi/ntgdi/gdiobj.c
+++ b/win32ss/gdi/ntgdi/gdiobj.c
@@ -1193,6 +1193,12 @@ GreGetObjectOwner(HGDIOBJ hobj)
 {
     ULONG ulIndex, ulOwner;
 
+    if (hobj == NULL)
+    {
+        DPRINT("GreGetObjectOwner: invalid NULL handle\n");
+        return GDI_OBJ_HMGR_RESTRICTED;
+    }
+
     /* Get the handle index */
     ulIndex = GDI_HANDLE_GET_INDEX(hobj);