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: 17+ 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
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