linux-kernel - Re: [PATCH] NVMe: Fix error handling of class

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Date:	Tue, 10 Mar 2015 15:46:29 -0400
From:	Matthew Wilcox <willy@....cx>
To:	J Freyensee <james_p_freyensee@...ux.intel.com>
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Keith Busch <keith.busch@...el.com>,
	ldv-project@...uxtesting.org, linux-nvme@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] NVMe: Fix error handling of class_create("nvme")

On Tue, Mar 10, 2015 at 12:18:22PM -0700, J Freyensee wrote:
> Looking at IS_ERR(), it uses IS_ERR_VALUE() which uses unlikely(), which
> from what I understand is a compiler hint that means "this error is
> unlikely to happen".
> 
> Well, is this error unlikely to happen?  Looks like the error could be

Yes.  All errors are, by definition, unlikely to happen.
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