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Date:   Sun, 15 Mar 2020 14:23:19 +0000
From:   Al Viro <viro@zeniv.linux.org.uk>
To:     Hillf Danton <hdanton@sina.com>
Cc:     linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC][PATCH v4 22/69] merging pick_link() with get_link(), part 4
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On Sun, Mar 15, 2020 at 05:41:48PM +0800, Hillf Danton wrote:
> > +	link = walk_component(nd, 0);
> > +	if (link) {
> 
> Need to check that link is not err.

What for?  It will do the right thing anyway.