-int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr);
-int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr);
+int __must_check sysfs_create_bin_file(struct kobject *kobj,
+ struct bin_attribute *attr);
+void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr);