From: Steven Whitehouse <swhiteho@redhat.com>
Date: Mon, 30 Oct 2006 21:59:08 +0000 (-0500)
Subject: [GFS2] Fix OOM error handling
X-Git-Tag: v2.6.19-rc5~7^2~2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26d83dedf61d26d85f10bc34b92f4de7660fd746;p=linux-2.6

[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>
---

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 57c43ac479..d470e5286e 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -157,6 +157,9 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, struct gfs2_inum *inum,
 	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);