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From: Ming Lei <ming.lei@redhat.com>
To: Luis Chamberlain <mcgrof@kernel.org>
Cc: ulf.hansson@linaro.org, snitzer@redhat.com,
	linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
	dm-devel@redhat.com, Christoph Hellwig <hch@lst.de>,
	agk@redhat.com, beanhuo@micron.com, sagi@grimberg.me,
	linux-scsi@vger.kernel.org, hch@infradead.org,
	jejb@linux.ibm.com, josef@toxicpanda.com, swboyd@chromium.org,
	linux-block@vger.kernel.org, avri.altman@wdc.com,
	kbusch@kernel.org, nbd@other.debian.org, bvanassche@acm.org,
	axboe@kernel.dk, martin.petersen@oracle.com,
	linux-mmc@vger.kernel.org, adrian.hunter@intel.com
Subject: Re: [dm-devel] [PATCH v3 2/8] scsi/sr: add error handling support for add_disk()
Date: Tue, 7 Sep 2021 09:37:05 +0800	[thread overview]
Message-ID: <YTbCQdieHG07Bz8W@T590> (raw)
In-Reply-To: <20210830212538.148729-3-mcgrof@kernel.org>

On Mon, Aug 30, 2021 at 02:25:32PM -0700, Luis Chamberlain wrote:
> We never checked for errors on add_disk() as this function
> returned void. Now that this is fixed, use the shiny new
> error handling.
> 
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
> ---
>  drivers/scsi/sr.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
> index 2942a4ec9bdd..72fd21844367 100644
> --- a/drivers/scsi/sr.c
> +++ b/drivers/scsi/sr.c
> @@ -779,7 +779,10 @@ static int sr_probe(struct device *dev)
>  	dev_set_drvdata(dev, cd);
>  	disk->flags |= GENHD_FL_REMOVABLE;
>  	sr_revalidate_disk(cd);
> -	device_add_disk(&sdev->sdev_gendev, disk, NULL);
> +
> +	error = device_add_disk(&sdev->sdev_gendev, disk, NULL);
> +	if (error)
> +		goto fail_minor;

You don't undo register_cdrom(), maybe you can use kref_put(&cd->kref, sr_kref_release);
to simplify the error handling.


Thanks,
Ming

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  parent reply	other threads:[~2021-09-07  1:37 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-30 21:25 [dm-devel] [PATCH v3 0/8] block: first batch of add_disk() error handling conversions Luis Chamberlain
2021-08-30 21:25 ` [dm-devel] [PATCH v3 1/8] scsi/sd: add error handling support for add_disk() Luis Chamberlain
2021-09-06  6:13   ` Hannes Reinecke
2021-09-07  1:29   ` Ming Lei
2021-09-13 17:21     ` Luis Chamberlain
2021-08-30 21:25 ` [dm-devel] [PATCH v3 2/8] scsi/sr: " Luis Chamberlain
2021-09-06  6:13   ` Hannes Reinecke
2021-09-07  1:37   ` Ming Lei [this message]
2021-09-13 17:26     ` Luis Chamberlain
2021-08-30 21:25 ` [dm-devel] [PATCH v3 3/8] nvme: " Luis Chamberlain
2021-09-06  6:16   ` Hannes Reinecke
2021-09-06  8:09     ` Christoph Hellwig
2021-09-06  8:09   ` Christoph Hellwig
2021-08-30 21:25 ` [dm-devel] [PATCH v3 4/8] mmc/core/block: " Luis Chamberlain
2021-09-06 17:10   ` Ulf Hansson
2021-08-30 21:25 ` [dm-devel] [PATCH v3 5/8] md: " Luis Chamberlain
2021-09-06  6:17   ` Hannes Reinecke
2021-08-30 21:25 ` [dm-devel] [PATCH v3 6/8] dm: add add_disk() error handling Luis Chamberlain
2021-09-06  6:19   ` Hannes Reinecke
2021-08-30 21:25 ` [dm-devel] [PATCH v3 7/8] loop: add error handling support for add_disk() Luis Chamberlain
2021-09-06  6:19   ` Hannes Reinecke
2021-08-30 21:25 ` [dm-devel] [PATCH v3 8/8] nbd: " Luis Chamberlain
2021-09-06  6:20   ` Hannes Reinecke

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