linux-kernel - Re: [PATCH] serial: ifx6x60: Add modem power off function in the platform reboot process

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Message-ID: <1353669254.23300.16.camel@chenjun-workstation>
Date:	Fri, 23 Nov 2012 06:14:14 -0500
From:	Jun Chen <jun.d.chen@...el.com>
To:	Alan Cox <alan@...ux.intel.com>
Cc:	Bi Chao <chao.bi@...el.com>, serial <linux-serial@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	"russ.gorby" <russ.gorby@...el.com>
Subject: Re: [PATCH] serial: ifx6x60: Add modem power off function in the
 platform reboot process

On Thu, 2012-11-22 at 11:08 +0000, Alan Cox wrote:
> On Thu, 22 Nov 2012 06:19:23 -0500
> Jun Chen <jun.d.chen@...el.com> wrote:
> 
> > 
> > This patch add modem power off function in the reboot process
> > according registering reboot callback to the reboot_notifier_list.
> > Also realizing the spi shutdown function.
> 
> Need to unregister the reboot notifier in the ifx_spi_exit path. If the
> driver module is unloaded you leave the callback present and the kernel
> will call into freed memory.
> 
> Alan
Yes,thanks! I will update this patch again.

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