From 8f7fc880e8bbe9e59521df707f2ddd3e80e06e6f Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 12 May 2008 16:28:40 +1000
Subject: drm: fix oops on reading proc file with no master

---
 linux-core/drm_proc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/linux-core/drm_proc.c b/linux-core/drm_proc.c
index b6748b9b..7f185209 100644
--- a/linux-core/drm_proc.c
+++ b/linux-core/drm_proc.c
@@ -175,6 +175,9 @@ static int drm_name_info(char *buf, char **start, off_t offset, int request,
 		return 0;
 	}
 
+	if (!master)
+		return 0;
+
 	*start = &buf[offset];
 	*eof = 0;
 
-- 
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