linux-kernel - Re: [PATCH] serial: Initialize spinlocks in 8250 and don't clobber them.

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Message-ID: <20081021165018.28794974@lxorguk.ukuu.org.uk>
Date:	Tue, 21 Oct 2008 16:50:18 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	David Daney <ddaney@...iumnetworks.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mips@...ux-mips.org, Tomaso.Paoletti@...iumnetworks.com
Subject: Re: [PATCH] serial: Initialize spinlocks in 8250 and don't clobber
 them.

> The question is:  What is the best way to initialize some (or all) fields of a structure *except* a single lock field that was previously initialized?

Move the initialisation - or at least memset to zero then spin_lock_init
and fill in the other fields later.
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