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Date:   Thu, 10 May 2018 11:00:39 -0600
From:   Keith Busch <keith.busch@intel.com>
To:     Alexandru Gagniuc <mr.nuke.me@gmail.com>
Cc:     linux-nvme@lists.infradead.org, alex_gagniuc@dellteam.com,
        Austin.Bolen@dell.com, Shyam.Iyer@dell.com,
        Jens Axboe <axboe@fb.com>, Christoph Hellwig <hch@lst.de>,
        Sagi Grimberg <sagi@grimberg.me>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] nvme-pci: Avoid use of goto in nvme_reset_work()
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References: <20180510164645.19559-1-mr.nuke.me@gmail.com>
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On Thu, May 10, 2018 at 11:46:33AM -0500, Alexandru Gagniuc wrote:
> This patch started as a challenge from Keith relating to code
> structuring with goto vs return. I think the final result improves
> readability on two counts:
> First, it clarifies the separation between work struct and nvme_dev.
> Second, it makes it clearer what error is being passed on:
> 'return -ENODEV' vs 'goto out', where 'result' happens to be -ENODEV
> 
> CC: Keith Busch <keith.busch@intel.com>
> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

Ah, that's just wrapping a function that has a single out. The challenge
is to find a better mechanism than 'goto' to unwind a failure that has
multiple outs, like nvme_probe().