From: Rafael J. Wysocki <[email protected]> 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 <[email protected]> --- drivers/acpi/scan.c | 1 + 1 file changed, 1 insertion(+) Index: linux-pm/drivers/acpi/scan.c =================================================================== --- linux-pm.orig/drivers/acpi/scan.c +++ linux-pm/drivers/acpi/scan.c @@ -2106,6 +2106,7 @@ void acpi_bus_trim(struct acpi_device *a list_for_each_entry_reverse(child, &adev->children, node) acpi_bus_trim(child); + adev->flags.match_driver = false; if (handler) { if (handler->detach) handler->detach(adev); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
