From 1eaf1b0191ce7e82ced728f615f44c2dde85a173 Mon Sep 17 00:00:00 2001
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Thu, 13 Mar 2025 13:13:47 +0100
Subject: [PATCH] dix: NULL-protect FreeGC()

Make it possible to call FreeGC() w/o prior NULL checks.
In case of NULL, BadMatch is returned.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
 dix/gc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dix/gc.c b/dix/gc.c
index 6de1d28b6..3f0711906 100644
--- a/dix/gc.c
+++ b/dix/gc.c
@@ -768,6 +768,8 @@ int
 FreeGC(void *value, XID gid)
 {
     GCPtr pGC = (GCPtr) value;
+    if (!pGC)
+        return BadMatch;
 
     CloseFont(pGC->font, (Font) 0);
     if (pGC->funcs)