cdev_put          389 fs/char_dev.c  	cdev_put(new);
cdev_put          394 fs/char_dev.c  		cdev_put(p);
cdev_put          400 fs/char_dev.c  		cdev_put(p);
cdev_put          276 fs/file_table.c 		cdev_put(inode->i_cdev);
cdev_put           25 include/linux/cdev.h void cdev_put(struct cdev *p);