[reactos] 01/01: [NTGDI] Silence some debug log spam from GreGetObjectOwner when input parameter is NULL. (#7606)

[Doug Lyons]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b1257cefe1001598566b7e...

commit b1257cefe1001598566b7efba7fe0dd13e12782f
Author:     Doug Lyons [e-mail]
AuthorDate: Thu Jan 16 19:11:19 2025 -0600
Commit:     GitHub [e-mail]
CommitDate: Thu Jan 16 19:11:19 2025 -0600

[NTGDI] Silence some debug log spam from GreGetObjectOwner when input parameter is NULL. (#7606)

CORE-19962
    Co-authored-by: Timo Kreuzer [e-mail]
---
 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);