printk (KERN_ERR PFX "misc device register failed\n"); 
printk (KERN_ERR RNG_MODULE_NAME ": misc device register failed\n"); 
static int __init rng_init (void){	int err;        err = os_open_file("/dev/random", of_read(OPENFLAGS()), 0);        if(err < 0)                goto out;        random_fd = err;        err = os_set_fd_block(random_fd, 0);        if(err)		goto err_out_cleanup_hw;	err = misc_register (&rng_miscdev);	if (err) {		printk (KERN_ERR PFX "misc device register failed\n");		goto err_out_cleanup_hw;	} out:        return err; err_out_cleanup_hw:        random_fd = -1;        goto out;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/567b56508f7367e161d6d861ef214a900ab45ce9/random.c/clean/arch/um/drivers/random.c