Commit 89b1b86f authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Jonathan Cameron
Browse files

iio: core: make iio_bus_type const 



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

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRicardo B. Marliere <ricardo@marliere.net>
Acked-by: default avatarNuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240208-bus_cleanup-iio-v1-1-4a167c3b5fb3@marliere.net


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 7c28226c

drivers/iio/industrialio-core.c

+1 −1
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ static DEFINE_IDA(iio_ida); 
static dev_t iio_devt;



#define IIO_DEV_MAX 256

struct bus_type iio_bus_type = {

const struct bus_type iio_bus_type = {

	.name = "iio",

};

EXPORT_SYMBOL(iio_bus_type);

include/linux/iio/iio.h

+1 −1
Original line number Diff line number Diff line
@@ -669,7 +669,7 @@ DEFINE_GUARD_COND(iio_claim_direct, _try, ({ 
int iio_device_claim_buffer_mode(struct iio_dev *indio_dev);

void iio_device_release_buffer_mode(struct iio_dev *indio_dev);



extern struct bus_type iio_bus_type;

extern const struct bus_type iio_bus_type;



/**

 * iio_device_put() - reference counted deallocation of struct device