sysfs: Add sysfs_update_groups function

}

EXPORT_SYMBOL_GPL(sysfs_create_group);

/**

 * sysfs_create_groups - given a directory kobject, create a bunch of attribute groups

 * @kobj:	The kobject to create the group on

 * @groups:	The attribute groups to create, NULL terminated

 *

 * This function creates a bunch of attribute groups.  If an error occurs when

 * creating a group, all previously created groups will be removed, unwinding

 * everything back to the original state when this function was called.

 * It will explicitly warn and error if any of the attribute files being

 * created already exist.

 *

 * Returns 0 on success or error code from sysfs_create_group on failure.

 */

int sysfs_create_groups(struct kobject *kobj,

static int internal_create_groups(struct kobject *kobj, int update,

				  const struct attribute_group **groups)

{

	int error = 0;

		return 0;

	for (i = 0; groups[i]; i++) {

		error = sysfs_create_group(kobj, groups[i]);

		error = internal_create_group(kobj, update, groups[i]);

		if (error) {

			while (--i >= 0)

				sysfs_remove_group(kobj, groups[i]);

	}

	return error;

}

/**

 * sysfs_create_groups - given a directory kobject, create a bunch of attribute groups

 * @kobj:	The kobject to create the group on

 * @groups:	The attribute groups to create, NULL terminated

 *

 * This function creates a bunch of attribute groups.  If an error occurs when

 * creating a group, all previously created groups will be removed, unwinding

 * everything back to the original state when this function was called.

 * It will explicitly warn and error if any of the attribute files being

 * created already exist.

 *

 * Returns 0 on success or error code from sysfs_create_group on failure.

 */

int sysfs_create_groups(struct kobject *kobj,

			const struct attribute_group **groups)

{

	return internal_create_groups(kobj, 0, groups);

}

EXPORT_SYMBOL_GPL(sysfs_create_groups);

/**

 * sysfs_update_groups - given a directory kobject, create a bunch of attribute groups

 * @kobj:	The kobject to update the group on

 * @groups:	The attribute groups to update, NULL terminated

 *

 * This function update a bunch of attribute groups.  If an error occurs when

 * updating a group, all previously updated groups will be removed together

 * with already existing (not updated) attributes.

 *

 * Returns 0 on success or error code from sysfs_update_group on failure.

 */

int sysfs_update_groups(struct kobject *kobj,

			const struct attribute_group **groups)

{

	return internal_create_groups(kobj, 1, groups);

}

EXPORT_SYMBOL_GPL(sysfs_update_groups);

/**

 * sysfs_update_group - given a directory kobject, update an attribute group

 * @kobj:	The kobject to update the group on

				    const struct attribute_group *grp);

int __must_check sysfs_create_groups(struct kobject *kobj,

				     const struct attribute_group **groups);

int __must_check sysfs_update_groups(struct kobject *kobj,

				     const struct attribute_group **groups);

int sysfs_update_group(struct kobject *kobj,

		       const struct attribute_group *grp);

void sysfs_remove_group(struct kobject *kobj,

	return 0;

}

static inline int sysfs_update_groups(struct kobject *kobj,

				      const struct attribute_group **groups)

{

	return 0;

}

static inline int sysfs_update_group(struct kobject *kobj,

				const struct attribute_group *grp)

{