linux-kernel - Re: [bug] Re: [PATCH 4/12] riscom8: fix SMP brokenness

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Message-ID: <20080220220010.4e439114@core>
Date:	Wed, 20 Feb 2008 22:00:10 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	akpm@...ux-foundation.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [bug] Re: [PATCH 4/12] riscom8: fix SMP brokenness

> This is unfortunately very low on the priority stack.  I was a bit 
> surprised when it went in, honestly, since I hadn't gotten any "it 
> works" test reports yet...  but that's my fault for not keeping akpm up 
> to date.
> 
> We'll want to revert this for 2.6.25 release, if it doesn't get fixed up.

Fix is trivial: Don't take the lock in rc_release_drivers. The
tty_unregister_driver does its own thing as does put_tty_driver.

Alan
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