linux-kernel - Re: [PATCH 19/24] dm: remove dm_get_dev

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Message-ID: <20230524060659.GB19611@lst.de>
Date:   Wed, 24 May 2023 08:06:59 +0200
From:   Christoph Hellwig <hch@....de>
To:     Mike Snitzer <snitzer@...nel.org>
Cc:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Joern Engel <joern@...ybastard.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Pavel Machek <pavel@....cz>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 19/24] dm: remove dm_get_dev_t

On Tue, May 23, 2023 at 12:49:16PM -0400, Mike Snitzer wrote:
> > -		dev = dm_get_dev_t(path);
> > -		if (!dev)
> > +		r = lookup_bdev(path, &dev);
> > +		if (r)
> > +			r = early_lookup_bdev(path, &dev);
> > +		if (r)
> >  			return -ENODEV;
> >  	}
> >  	if (dev == disk_devt(t->md->disk))
> 
> OK, but you aren't actually propagating the exact error code.  Did
> you intend to change the return from -ENODEV to r?

Yes, thanks.