linux-kernel - Re: [PATCH 1/7] [RFC] UBI: Export next

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Date:	Tue, 22 May 2012 13:58:43 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Richard Weinberger <richard@....at>
Cc:	linux-mtd@...ts.infradead.org, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, Heinz.Egger@...utronix.de,
	tim.bird@...sony.com
Subject: Re: [PATCH 1/7] [RFC] UBI: Export next_sqnum()

On Mon, 2012-05-21 at 15:34 +0200, Richard Weinberger wrote:
> >       fm_start = ubi_find_fastmap(ubi);
> >       if (fm_start<  0)
> > +             /* TODO: instead, return 1 which means that fall-back
> to
> > +              * scanning is needed */
> 
> fm_start is the PEB number of the fastmap super block.
> It will return 1 if the super block was found at PEB 1.
> That's why it returns a negative values in case of an error 

OK, if 1 does not work - use 2, introduce your own constant. Using
-EINVAL is simply incorrect. Check what happens if the MTD driver
returns -EINVAL when you call 'ubi_io_read_vid_hdr()'.
-- 
Best Regards,
Artem Bityutskiy

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