linux-kernel - Re: [PATCH 6/7] isofs: stop using ioctl_by

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Message-ID: <20200424092125.GA13069@quack2.suse.cz>
Date:   Fri, 24 Apr 2020 11:21:25 +0200
From:   Jan Kara <jack@...e.cz>
To:     Christoph Hellwig <hch@....de>
Cc:     Jan Kara <jack@...e.cz>, Jens Axboe <axboe@...nel.dk>,
        Tim Waugh <tim@...erelk.net>, Borislav Petkov <bp@...en8.de>,
        Jan Kara <jack@...e.com>, linux-block@...r.kernel.org,
        linux-ide@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/7] isofs: stop using ioctl_by_bdev

On Fri 24-04-20 08:52:53, Christoph Hellwig wrote:
> On Thu, Apr 23, 2020 at 01:03:47PM +0200, Jan Kara wrote:
> > There's no error handling in the caller and this function actually returns
> > unsigned int... So I believe you need to return 0 here to maintain previous
> > behavior (however suspicious it may be)?
> 
> Indeed, and I don't think it is suspicious at all - if we have no CDROM
> info we should assume session 0, which is the same as for non-CDROM
> devices.  Fixed for the next version.

Right, I've realized that once I've checked UDF version and thought about
it for a while...

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR