Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[firefly-linux-kernel-4.4.55.git] / kernel / audit_watch.c

diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index e683869365d9bdaf60abcb44e37da05506ab5672..3823281401b57e423f9a4ba9255b5904920e7e1d 100644 (file)
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -355,34 +355,15 @@ static void audit_remove_parent_watches(struct audit_parent *parent)
 /* Get path information necessary for adding watches. */
 static int audit_get_nd(struct audit_watch *watch, struct path *parent)
 {
-       struct nameidata nd;
-       struct dentry *d;
-       int err;
-
-       err = kern_path_parent(watch->path, &nd);
-       if (err)
-               return err;
-
-       if (nd.last_type != LAST_NORM) {
-               path_put(&nd.path);
-               return -EINVAL;
-       }
-
-       mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
-       d = lookup_one_len(nd.last.name, nd.path.dentry, nd.last.len);
-       if (IS_ERR(d)) {
-               mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
-               path_put(&nd.path);
+       struct dentry *d = kern_path_locked(watch->path, parent);
+       if (IS_ERR(d))
                return PTR_ERR(d);
-       }
+       mutex_unlock(&parent->dentry->d_inode->i_mutex);
        if (d->d_inode) {
                /* update watch filter fields */
                watch->dev = d->d_inode->i_sb->s_dev;
                watch->ino = d->d_inode->i_ino;
        }
-       mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
-
-       *parent = nd.path;
        dput(d);
        return 0;
 }