projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 2003 Christoph Hellwig. | |
| 3 | * Released under GPL v2. | |
| 4 | * | |
| 5 | * Support for old-style host templates. | |
| 6 | * | |
| 7 | * NOTE: Do not use this for new drivers ever. | |
| 8 | */ | |
| 9 | ||
| 10 | #include <linux/init.h> | |
| 11 | #include <linux/kernel.h> | |
| 12 | #include <linux/module.h> | |
| 13 | ||
| 14 | #include <scsi/scsi_host.h> | |
| 15 | ||
| 16 | ||
| 17 | static int __init init_this_scsi_driver(void) | |
| 18 | { | |
| 19 | struct scsi_host_template *sht = &driver_template; | |
| 20 | struct Scsi_Host *shost; | |
| 21 | struct list_head *l; | |
| 22 | int error; | |
| 23 | ||
| 24 | if (!sht->release) { | |
| 25 | printk(KERN_ERR | |
| 26 | "scsi HBA driver %s didn't set a release method.\n", | |
| 27 | sht->name); | |
| 28 | return -EINVAL; | |
| 29 | } | |
| 30 | ||
| 31 | sht->module = THIS_MODULE; | |
| 32 | INIT_LIST_HEAD(&sht->legacy_hosts); | |
| 33 | ||
| 34 | sht->detect(sht); | |
| 35 | if (list_empty(&sht->legacy_hosts)) | |
| 36 | return -ENODEV; | |
| 37 | ||
| 38 | list_for_each_entry(shost, &sht->legacy_hosts, sht_legacy_list) { | |
| 39 | error = scsi_add_host(shost, NULL); | |
| 40 | if (error) | |
| 41 | goto fail; | |
| 42 | scsi_scan_host(shost); | |
| 43 | } | |
| 44 | return 0; | |
| 45 | fail: | |
| 46 | l = &shost->sht_legacy_list; | |
| 47 | while ((l = l->prev) != &sht->legacy_hosts) | |
| 48 | scsi_remove_host(list_entry(l, struct Scsi_Host, sht_legacy_list)); | |
| 49 | return error; | |
| 50 | } | |
| 51 | ||
| 52 | static void __exit exit_this_scsi_driver(void) | |
| 53 | { | |
| 54 | struct scsi_host_template *sht = &driver_template; | |
| 55 | struct Scsi_Host *shost, *s; | |
| 56 | ||
| 57 | list_for_each_entry(shost, &sht->legacy_hosts, sht_legacy_list) | |
| 58 | scsi_remove_host(shost); | |
| 59 | list_for_each_entry_safe(shost, s, &sht->legacy_hosts, sht_legacy_list) | |
| 60 | sht->release(shost); | |
| 61 | ||
| 62 | if (list_empty(&sht->legacy_hosts)) | |
| 63 | return; | |
| 64 | ||
| 65 | printk(KERN_WARNING "%s did not call scsi_unregister\n", sht->name); | |
| 66 | dump_stack(); | |
| 67 | ||
| 68 | list_for_each_entry_safe(shost, s, &sht->legacy_hosts, sht_legacy_list) | |
| 69 | scsi_unregister(shost); | |
| 70 | } | |
| 71 | ||
| 72 | module_init(init_this_scsi_driver); | |
| 73 | module_exit(exit_this_scsi_driver); |