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74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
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/*
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* Copyright (C) 2003 Christoph Hellwig.
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* Released under GPL v2.
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*
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* Support for old-style host templates.
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*
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* NOTE: Do not use this for new drivers ever.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <scsi/scsi_host.h>
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static int __init init_this_scsi_driver(void)
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{
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struct scsi_host_template *sht = &driver_template;
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struct Scsi_Host *shost;
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struct list_head *l;
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int error;
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if (!sht->release) {
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printk(KERN_ERR
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"scsi HBA driver %s didn't set a release method.\n",
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sht->name);
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return -EINVAL;
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}
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sht->module = THIS_MODULE;
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INIT_LIST_HEAD(&sht->legacy_hosts);
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sht->detect(sht);
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if (list_empty(&sht->legacy_hosts))
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return -ENODEV;
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list_for_each_entry(shost, &sht->legacy_hosts, sht_legacy_list) {
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error = scsi_add_host(shost, NULL);
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if (error)
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goto fail;
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scsi_scan_host(shost);
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}
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return 0;
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fail:
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l = &shost->sht_legacy_list;
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while ((l = l->prev) != &sht->legacy_hosts)
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scsi_remove_host(list_entry(l, struct Scsi_Host, sht_legacy_list));
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return error;
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}
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static void __exit exit_this_scsi_driver(void)
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{
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struct scsi_host_template *sht = &driver_template;
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struct Scsi_Host *shost, *s;
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list_for_each_entry(shost, &sht->legacy_hosts, sht_legacy_list)
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scsi_remove_host(shost);
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list_for_each_entry_safe(shost, s, &sht->legacy_hosts, sht_legacy_list)
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sht->release(shost);
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if (list_empty(&sht->legacy_hosts))
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return;
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printk(KERN_WARNING "%s did not call scsi_unregister\n", sht->name);
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dump_stack();
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list_for_each_entry_safe(shost, s, &sht->legacy_hosts, sht_legacy_list)
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scsi_unregister(shost);
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}
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module_init(init_this_scsi_driver);
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module_exit(exit_this_scsi_driver);
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