linux-kernel - [PATCHv2 12/12]posix_acl: Add the check items

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Message-ID: <4B2F6407.4060805@gmail.com>
Date:	Mon, 21 Dec 2009 20:03:19 +0800
From:	Liuwenyi <qingshenlwy@...il.com>
To:	aelder@....com, xfs-masters@....sgi.com, hch@....de,
	viro@...iv.linux.org.uk, sandeen@...deen.net,
	joel.becker@...cle.com, xfs@....sgi.com,
	linux-kernel@...r.kernel.org, strongzgy@...il.com,
	onlyflyer@...il.com
Subject: [PATCHv2 12/12]posix_acl: Add the check items

move the ACL validation check in to fs/posix_acl.c.
Including nullpointer check and PTR_ERR check.

---
Signed-off-by: Liuwenyi <qingshenlwy@...il.com>
Cc: Alex Elder <aelder@....com>
Cc: xfs-masters@....sgi.com
Cc :Christoph Hellwig <hch@....de>
Cc: Al Viro <viro@...iv.linux.org.uk>
Cc: Eric Sandeen <sandeen@...deen.net>
Cc: Joel Becker <joel.becker@...cle.com>
Cc: xfs@....sgi.com
Cc: linux-kernel@...r.kernel.org

---
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index 2512125..3de2533 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -392,17 +392,6 @@ xfs_xattr_acl_set(struct dentry *dentry, const char
*name,
goto set_acl;

acl = posix_acl_from_xattr(value, size);
- if (!acl) {
- /*
- * acl_set_file(3) may request that we set default ACLs with
- * zero length -- defend (gracefully) against that here.
- */
- goto out;
- }
- if (IS_ERR(acl)) {
- error = PTR_ERR(acl);
- goto out;
- }

error = posix_acl_valid(acl);
if (error)

-- 
Best Regards,
Liuwenyi

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