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SubjectRe: [Update][PATCH 1/6] ACPI / scan: Start matching drivers after trying scan handlers
On Mon, 2013-11-04 at 14:30 +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <>
> ACPI scan handlers should always be attached to struct acpi_device
> objects before any ACPI drivers, but there is a window during which
> a driver may be attached to a struct acpi_device before checking if
> there is a matching scan handler. Namely, that will happen if an
> ACPI driver module is loaded during acpi_bus_scan() right after
> the first namespace walk is complete and before the given device
> is processed by the second namespace walk.
> To prevent that from happening, set the match_driver flags of
> struct acpi_device objects right before running device_attach()
> for them in acpi_bus_device_attach().
> Signed-off-by: Rafael J. Wysocki <>

Acked-by: Toshi Kani <>


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