d_path: prepend_path(): lift resetting b in case when we'd return 3 out of loop

preparation to extracting the loop into helper (next commit)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2021-05-12 16:21:43 -04:00
parent 7c0d552fd5
commit 2dac0ad175

View file

@ -115,7 +115,6 @@ static int prepend_path(const struct path *path,
/* Escaped? */
if (dentry != mnt->mnt.mnt_root) {
b = *p;
error = 3;
break;
}
@ -156,6 +155,9 @@ static int prepend_path(const struct path *path,
}
done_seqretry(&mount_lock, m_seq);
if (unlikely(error == 3))
b = *p;
if (b.len == p->len)
prepend(&b, "/", 1);