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authorAl Viro <viro@zeniv.linux.org.uk>2011-02-23 03:24:38 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-14 14:15:24 +0100
commit36f3b4f69070fee7c647bab5dc4408990bb3606c (patch)
tree47431f3ae87bd5c81a157287d2d433386e9bbf6f /fs/namei.c
parentpull dropping RCU on success of link_path_walk() into path_lookupat() (diff)
downloadlinux-36f3b4f69070fee7c647bab5dc4408990bb3606c.tar.xz
linux-36f3b4f69070fee7c647bab5dc4408990bb3606c.zip
pull security_inode_follow_link() into __do_follow_link()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 8f10a9ff9f6b..f956567270bb 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -754,6 +754,13 @@ __do_follow_link(const struct path *link, struct nameidata *nd, void **p)
if (link->mnt == nd->path.mnt)
mntget(link->mnt);
+ error = security_inode_follow_link(link->dentry, nd);
+ if (error) {
+ *p = ERR_PTR(error); /* no ->put_link(), please */
+ path_put(&nd->path);
+ return error;
+ }
+
nd->last_type = LAST_BIND;
*p = dentry->d_inode->i_op->follow_link(dentry, nd);
error = PTR_ERR(*p);
@@ -791,9 +798,6 @@ static inline int do_follow_link(struct inode *inode, struct path *path, struct
goto loop;
BUG_ON(nd->depth >= MAX_NESTED_LINKS);
cond_resched();
- err = security_inode_follow_link(path->dentry, nd);
- if (err)
- goto loop;
current->link_count++;
current->total_link_count++;
nd->depth++;
@@ -2420,9 +2424,6 @@ reval:
* just set LAST_BIND.
*/
nd.flags |= LOOKUP_PARENT;
- error = security_inode_follow_link(link.dentry, &nd);
- if (error)
- goto exit_dput;
error = __do_follow_link(&link, &nd, &cookie);
if (unlikely(error)) {
if (!IS_ERR(cookie) && linki->i_op->put_link)