linux-kernel - Re: [PATCH 1/5] mtd: fix bdev exclusive open bugs in block2mtd::add

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Date:	Sat, 13 Nov 2010 12:38:55 +0200
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	axboe@...nel.dk, hch@...radead.org, linux-kernel@...r.kernel.org,
	petero2@...ia.com, schwidefsky@...ibm.com,
	heiko.carstens@...ibm.com, jack@...e.cz, akpm@...ux-foundation.org,
	adilger.kernel@...ger.ca, tytso@....edu, mfasheh@...e.com,
	joel.becker@...cle.com, aelder@....com, dm-devel@...hat.com,
	drbd-dev@...ts.linbit.com, neilb@...e.de, leochen@...adcom.com,
	sbranden@...adcom.com, chris.mason@...cle.com, swhiteho@...hat.com,
	shaggy@...ux.vnet.ibm.com, joern@...fs.org,
	konishi.ryusuke@....ntt.co.jp, reiserfs-devel@...r.kernel.org,
	viro@...iv.linux.org.uk, linux-mtd@...ts.infradead.org
Subject: Re: [PATCH 1/5] mtd: fix bdev exclusive open bugs in
 block2mtd::add_device()

Hi,

On Mon, 2010-11-01 at 17:15 +0100, Tejun Heo wrote:
> +			if (!IS_ERR(bdev)) {
> +				int ret;
> +				ret = bd_claim(bdev, dev);
> +				if (ret) {
> +					blkdev_put(bdev,
> +						   FMODE_READ | FMODE_WRITE);

Would be a bit cleaner to define ea temporary variable:

fmode_t mode = FMODE_READ | FMODE_WRITE;

Would you to re-send with this little change please?

And ideally, 2 independent patches would be nicer because you fix 2
independent issues.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)

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