linux-kernel - [032/117] ocfs2: potential ERR_PTR dereference on error paths

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Message-Id: <20100510223320.085540099@kvm.kroah.org>
Date:	Mon, 10 May 2010 15:32:03 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Dan Carpenter <error27@...il.com>,
	Joel Becker <joel.becker@...cle.com>
Subject: [032/117] ocfs2: potential ERR_PTR dereference on error paths

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Dan Carpenter <error27@...il.com>

commit 0350cb078f5035716ebdad4ad4709d02fe466a8a upstream.

If "handle" is non null at the end of the function then we assume it's a
valid pointer and pass it to ocfs2_commit_trans();

Signed-off-by: Dan Carpenter <error27@...il.com>
Signed-off-by: Joel Becker <joel.becker@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/ocfs2/inode.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -559,6 +559,7 @@ static int ocfs2_truncate_for_delete(str
 		handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
 		if (IS_ERR(handle)) {
 			status = PTR_ERR(handle);
+			handle = NULL;
 			mlog_errno(status);
 			goto out;
 		}


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