static int __init chp_init(void)
{
struct chp_id chpid;
int ret;
ret = crw_register_handler(CRW_RSC_CPATH, chp_process_crw);
if (ret)
return ret;
chp_wq = create_singlethread_workqueue("cio_chp");
if (!chp_wq) {
crw_unregister_handler(CRW_RSC_CPATH);
return -ENOMEM;
}
INIT_WORK(&cfg_work, cfg_func);
init_waitqueue_head(&cfg_wait_queue);
if (info_update())
return 0;
/* Register available channel-paths. */
chp_id_for_each(&chpid) {
if (chp_info_get_status(chpid) != CHP_STATUS_NOT_RECOGNIZED)
chp_new(chpid);
}
return 0;
}
int __init chsc_init(void)
{
int ret;
sei_page = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
chsc_page = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!sei_page || !chsc_page) {
ret = -ENOMEM;
goto out_err;
}
ret = crw_register_handler(CRW_RSC_CSS, chsc_process_crw);
if (ret)
goto out_err;
return ret;
out_err:
free_page((unsigned long)chsc_page);
free_page((unsigned long)sei_page);
return ret;
}
