int __init isert_init_login_devs(unsigned int ndevs)
{
int res;
unsigned int i;
TRACE_ENTRY();
n_devs = ndevs;
res = alloc_chrdev_region(&devno, 0, n_devs,
"isert_scst");
isert_major = MAJOR(devno);
if (unlikely(res < 0)) {
PRINT_ERROR("isert: can't get major %d\n", isert_major);
goto out;
}
/*
* allocate the devices -- we can't have them static, as the number
* can be specified at load time
*/
isert_conn_devices = kzalloc(n_devs * sizeof(struct isert_conn_dev),
GFP_KERNEL);
if (unlikely(!isert_conn_devices)) {
res = -ENOMEM;
goto fail; /* Make this more graceful */
}
isert_class = class_create(THIS_MODULE, "isert_scst");
isert_setup_listener_cdev(&isert_listen_dev);
/* Initialize each device. */
for (i = 0; i < n_devs; i++)
isert_setup_cdev(&isert_conn_devices[i], i);
res = isert_datamover_init();
if (unlikely(res)) {
PRINT_ERROR("Unable to initialize datamover: %d\n", res);
goto fail;
}
out:
TRACE_EXIT_RES(res);
return res;
fail:
isert_cleanup_login_devs();
goto out;
}
static void isert_cleanup_module(void)
{
iscsit_unreg_transport(&isert_transport);
isert_cleanup_login_devs();
}
