postpone __putname() until after do_last()

Since do_last() doesn't mangle nd->last_name, we can safely postpone
__putname() done in handling of trailing symlinks until after the
call of do_last()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/namei.c b/fs/namei.c
index fc6bed7..30ba3f3 100644 (file)
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1923,9 +1923,9 @@ do_link:
        mutex_lock(&dir->d_inode->i_mutex);
        path.dentry = lookup_hash(&nd);
        path.mnt = nd.path.mnt;
-       __putname(nd.last.name);
        filp = do_last(&nd, &path, open_flag, flag, acc_mode, mode,
                       pathname, dir, &is_link);
+       __putname(nd.last.name);
        if (is_link)
                goto do_link;
        if (nd.root.mnt)