Commit 592190b5 authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Rafael J. Wysocki
Browse files

ACPI: bus: make acpi_bus_type const 



Now that the driver core can properly handle constant struct bus_type,
move the acpi_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Suggested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRicardo B. Marliere <ricardo@marliere.net>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 841c3516

drivers/acpi/bus.c

+1 −1
Original line number Diff line number Diff line
@@ -1097,7 +1097,7 @@ static void acpi_device_remove(struct device *dev) 
	put_device(dev);

}



struct bus_type acpi_bus_type = {

const struct bus_type acpi_bus_type = {

	.name		= "acpi",

	.match		= acpi_bus_match,

	.probe		= acpi_device_probe,

include/acpi/acpi_bus.h

+1 −1
Original line number Diff line number Diff line
@@ -582,7 +582,7 @@ void acpi_initialize_hp_context(struct acpi_device *adev, 
				void (*uevent)(struct acpi_device *, u32));



/* acpi_device.dev.bus == &acpi_bus_type */

extern struct bus_type acpi_bus_type;

extern const struct bus_type acpi_bus_type;



int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);

int acpi_dev_for_each_child(struct acpi_device *adev,