From 83b90e954729e7f46a6a8506d7aaa5249998fc99 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Tue, 10 Mar 2009 04:34:33 +0000
Subject: [PATCH] Don't free a NULL pointer.

svn path=/trunk/; revision=39931
---
 reactos/subsystems/win32/win32k/objects/color.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/reactos/subsystems/win32/win32k/objects/color.c b/reactos/subsystems/win32/win32k/objects/color.c
index 3155dd9d0cc..74f7e7a27ab 100644
--- a/reactos/subsystems/win32/win32k/objects/color.c
+++ b/reactos/subsystems/win32/win32k/objects/color.c
@@ -631,7 +631,8 @@ IntSetPaletteEntries(HPALETTE  hpal,
     }
     memcpy(palGDI->IndexedColors + Start, pe, Entries * sizeof(PALETTEENTRY));
     PALETTE_ValidateFlags(palGDI->IndexedColors, palGDI->NumColors);
-    ExFreePool(palGDI->logicalToSystem);
+    if (palGDI->logicalToSystem)
+        ExFreePool(palGDI->logicalToSystem);
     palGDI->logicalToSystem = NULL;
     PALETTE_UnlockPalette(palGDI);