From 46138d8ef7604c71025f3fa81d56b819d4e9acf3 Mon Sep 17 00:00:00 2001
From: Rein Klazes <rklazes@xs4all.nl>
Date: Mon, 5 Apr 2004 20:17:13 +0000
Subject: [PATCH] Do not crash if the clipboard format is unknown.

---
 dlls/x11drv/clipboard.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/x11drv/clipboard.c b/dlls/x11drv/clipboard.c
index e9555a7395a..e8afaf29057 100644
--- a/dlls/x11drv/clipboard.c
+++ b/dlls/x11drv/clipboard.c
@@ -369,7 +369,7 @@ LPWINE_CLIPFORMAT X11DRV_CLIPBOARD_LookupFormat(WORD wID)
 
 	lpFormat = lpFormat->NextFormat;
     }
-    if (!lpFormat->drvData) intern_atoms();
+    if (lpFormat && !lpFormat->drvData) intern_atoms();
     return lpFormat;
 }
 
@@ -1656,7 +1656,7 @@ static BOOL X11DRV_CLIPBOARD_ReadClipboardData(UINT wFormat)
 
         lpFormat = X11DRV_CLIPBOARD_LookupFormat(wFormat);
 
-        if (lpFormat->drvData)
+        if (lpFormat && lpFormat->drvData)
         {
     	    DWORD i;
 	    UINT alias;