[GFS2] Fix OOM error handling [3/5]

[Steven Whitehouse <swhiteho@redhat.com>]

>From 26d83dedf61d26d85f10bc34b92f4de7660fd746 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Mon, 30 Oct 2006 16:59:08 -0500
Subject: [PATCH] [GFS2] Fix OOM error handling

Fix the OOM error handling in inode.c where it was possible for
a NULL pointer to be dereferenced.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/inode.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 57c43ac..d470e52 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -157,6 +157,9 @@ struct inode *gfs2_inode_lookup(struct s
 	struct gfs2_glock *io_gl;
 	int error;
 
+	if (!inode)
+		return ERR_PTR(-ENOBUFS);
+
 	if (inode->i_state & I_NEW) {
 		struct gfs2_sbd *sdp = GFS2_SB(inode);
 		umode_t mode = DT2IF(type);
-- 
1.4.1



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