From: Mike Christie <michaelc@cs.wisc.edu>
To: Christoph Hellwig <hch@lst.de>,
Chandra Seetharaman <sekharan@us.ibm.com>,
Hannes Reinecke <hare@suse.de>
Cc: Sean Stewart <Sean.Stewart@netapp.com>,
Bart Van Assche <bvanassche@acm.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/6] scsi: handle more device handler setup/teardown in common code
Date: Tue, 28 Oct 2014 12:53:00 -0500 [thread overview]
Message-ID: <544FD7FC.8070005@cs.wisc.edu> (raw)
In-Reply-To: <1413734404-1426-7-git-send-email-hch@lst.de>
On 10/19/2014 11:00 AM, Christoph Hellwig wrote:
> -static int rdac_bus_attach(struct scsi_device *sdev)
> +static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev)
> {
> struct rdac_dh_data *h;
> - unsigned long flags;
> int err;
> char array_name[ARRAY_LABEL_LEN];
> char array_id[UNIQUE_ID_LEN];
>
> h = kzalloc(sizeof(*h) , GFP_KERNEL);
> - if (!h) {
> - sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
> - RDAC_NAME);
> - return -ENOMEM;
> - }
> -
> - h->dh_data.scsi_dh = &rdac_dh;
> + if (!h)
> + return ERR_PTR(-ENOMEM);
> h->lun = UNINITIALIZED_LUN;
> h->state = RDAC_STATE_ACTIVE;
>
> @@ -876,15 +856,10 @@ static int rdac_bus_attach(struct scsi_device *sdev)
> if (err != SCSI_DH_OK)
> goto clean_ctlr;
>
> - spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
> - sdev->scsi_dh_data = &h->dh_data;
> - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
> -
> sdev_printk(KERN_NOTICE, sdev,
> "%s: LUN %d (%s) (%s)\n",
> RDAC_NAME, h->lun, mode[(int)h->mode],
> lun_state[(int)h->lun_state]);
> -
> return 0;
Was this supposed to return a "struct scsi_dh_data *" instead of zero here?
next prev parent reply other threads:[~2014-10-28 17:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-19 15:59 device handler cleanups Christoph Hellwig
2014-10-19 15:59 ` [PATCH 1/6] scsi_dh: get module reference outside of device handler Christoph Hellwig
2014-10-20 6:01 ` Hannes Reinecke
2014-10-20 6:53 ` Christoph Hellwig
2014-10-20 8:06 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 2/6] scsi: use container_of to get at device handler private data Christoph Hellwig
2014-10-20 6:02 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 3/6] scsi: remove struct scsi_dh_devlist Christoph Hellwig
2014-10-20 6:03 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 4/6] scsi: device handlers must have attach and detach methods Christoph Hellwig
2014-10-20 6:04 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 5/6] scsi_dh_hp_sw: fix return value on failed allocation Christoph Hellwig
2014-10-20 6:04 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 6/6] scsi: handle more device handler setup/teardown in common code Christoph Hellwig
2014-10-20 6:06 ` Hannes Reinecke
2014-10-28 17:53 ` Mike Christie [this message]
2014-10-30 9:00 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2014-10-30 9:19 device handler cleanups V2 Christoph Hellwig
2014-10-30 9:19 ` [PATCH 6/6] scsi: handle more device handler setup/teardown in common code Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=544FD7FC.8070005@cs.wisc.edu \
--to=michaelc@cs.wisc.edu \
--cc=Sean.Stewart@netapp.com \
--cc=bvanassche@acm.org \
--cc=hare@suse.de \
--cc=hch@lst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=sekharan@us.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.