linux-kernel - Re: [PATCH] Serial: BUGFIX: uart_resume

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Message-ID: <20101013062605.GB4393@suse.de>
Date:	Tue, 12 Oct 2010 23:26:05 -0700
From:	Greg KH <gregkh@...e.de>
To:	MyungJoo Ham <myungjoo.ham@...sung.com>
Cc:	linux-kernel@...r.kernel.org, myungjoo.ham@...il.com,
	kyungmin.park@...sung.com, Alan Cox <alan@...ux.intel.com>,
	Arnd Bergmann <arnd@...db.de>,
	Andr Goddard Rosa <andre.goddard@...il.com>,
	Stanislav Brabec <sbrabec@...e.cz>
Subject: Re: [PATCH] Serial: BUGFIX: uart_resume_port has an omitted
	condition.

On Wed, Oct 13, 2010 at 02:58:06PM +0900, MyungJoo Ham wrote:
> When console_suspend_enabled == 0, console_stop() was not called at
> suspend; thus, it does not need to call console_start() when resume.
> Besides, calling console_start() without calling console_stop() before
> had been incurring kernel hang with console_suspend_enabled == 0 in a
> machine with drivers/serial/samsung.c and s5pc210.

Is this a regression?  If so, from what working kernel?  Or has this
always been this way?

thanks,

greg k-h
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