linux-kernel - Re: [PATCH 2/2] afs: Fix afs_xattr_get_yfs() to not try freeing an error value

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Message-ID: <31808.1557684645@warthog.procyon.org.uk>
Date:   Sun, 12 May 2019 19:10:45 +0100
From:   David Howells <dhowells@...hat.com>
To:     wharms@....de
Cc:     dhowells@...hat.com, colin.king@...onical.com, joe@...ches.com,
        jaltman@...istor.com, linux-afs@...ts.infradead.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] afs: Fix afs_xattr_get_yfs() to not try freeing an error value

walter harms <wharms@....de> wrote:

> > +	ret = dsize;
> > +	if (size > 0) {
> > +		if (dsize > size) {
> > +			ret = -ERANGE;
> > +			goto error_key;
> >  		}
> > +		memcpy(buffer, data, dsize);
> >  	}
> >  
> 
> i am confused: if size is <= 0 then the error is in dsize ?

See this bit, before that hunk:

> +	if (ret < 0)
> +		goto error_key;

David