linux-kernel - Re: [PATCH] ACPI / scan: Clear match_driver flag in acpi_bus

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Message-ID: <1390946378.1792.514.camel@misato.fc.hp.com>
Date:	Tue, 28 Jan 2014 14:59:38 -0700
From:	Toshi Kani <toshi.kani@...com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: Re: [PATCH] ACPI / scan: Clear match_driver flag in acpi_bus_trim()

On Mon, 2014-01-27 at 01:16 +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Drivers should not bind to struct acpi_device objects that
> acpi_bus_trim() has been called for, so make that function
> clear flags.match_driver for those objects.
> 
> If that is not done, an ACPI driver may theoretically try to operate
> a device that is not physically present.
> 
> Fixes: 202317a573b2 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Acked-by: Toshi Kani <toshi.kani@...com>

Thanks,
-Toshi



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