linux-kernel - Re: [PATCH] bay: Exit if notify handler cannot be installed

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Message-Id: <1210122221.27316.0.camel@sli10-desk.sh.intel.com>
Date:	Wed, 07 May 2008 09:03:41 +0800
From:	Shaohua Li <shaohua.li@...el.com>
To:	Holger Macht <hmacht@...e.de>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Accardi, Kristen C" <kristen.c.accardi@...el.com>
Subject: Re: [PATCH] bay: Exit if notify handler cannot be installed

On Tue, 2008-05-06 at 11:35 +0200, Holger Macht wrote:
> On Di 06. Mai - 11:33:16, Holger Macht wrote:
> > On Di 06. Mai - 17:23:31, Shaohua Li wrote:
> > > On Tue, 2008-05-06 at 17:15 +0800, Holger Macht wrote:
> > > > On Mo 05. Mai - 22:25:08, Holger Macht wrote:
> > > > > If acpi_install_notify_handler() for a bay device fails, the bay
> > > > driver is
> > > > > superfluous. Most likely, another driver (like libata) is already
> > > > caring
> > > > > about this device anyway. Furthermore,
> > > > > register_hotplug_dock_device(acpi_handle) from the dock driver must
> > > > not be
> > > > > called twice with the same handler. So clean up and exit.
> > > > 
> > > > The patch needs some more work. I'll send an updated one as soon as
> > > > ready.
> > > The bay driver is duplicated with libata, I thought we should delete it.
> > > See bug http://bugzilla.kernel.org/show_bug.cgi?id=9526
> > 
> > Yes, I know, but couldn't it be helpful on systems not using libata?
> 
> Also, libata has to be patched to execute ACPI _EJ0 (not a huge issue, I
> know) or calling bay's eject_removable drive method.
I have a patch in above bugzilla to handle it.

Thanks,
Shaohua

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