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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /drivers/scsi/scsi_module.c | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'drivers/scsi/scsi_module.c')
-rw-r--r-- | drivers/scsi/scsi_module.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_module.c b/drivers/scsi/scsi_module.c new file mode 100644 index 00000000..48917583 --- /dev/null +++ b/drivers/scsi/scsi_module.c @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2003 Christoph Hellwig. + * Released under GPL v2. + * + * Support for old-style host templates. + * + * NOTE: Do not use this for new drivers ever. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include <scsi/scsi_host.h> + + +static int __init init_this_scsi_driver(void) +{ + struct scsi_host_template *sht = &driver_template; + struct Scsi_Host *shost; + struct list_head *l; + int error; + + if (!sht->release) { + printk(KERN_ERR + "scsi HBA driver %s didn't set a release method.\n", + sht->name); + return -EINVAL; + } + + sht->module = THIS_MODULE; + INIT_LIST_HEAD(&sht->legacy_hosts); + + sht->detect(sht); + if (list_empty(&sht->legacy_hosts)) + return -ENODEV; + + list_for_each_entry(shost, &sht->legacy_hosts, sht_legacy_list) { + error = scsi_add_host(shost, NULL); + if (error) + goto fail; + scsi_scan_host(shost); + } + return 0; + fail: + l = &shost->sht_legacy_list; + while ((l = l->prev) != &sht->legacy_hosts) + scsi_remove_host(list_entry(l, struct Scsi_Host, sht_legacy_list)); + return error; +} + +static void __exit exit_this_scsi_driver(void) +{ + struct scsi_host_template *sht = &driver_template; + struct Scsi_Host *shost, *s; + + list_for_each_entry(shost, &sht->legacy_hosts, sht_legacy_list) + scsi_remove_host(shost); + list_for_each_entry_safe(shost, s, &sht->legacy_hosts, sht_legacy_list) + sht->release(shost); + + if (list_empty(&sht->legacy_hosts)) + return; + + printk(KERN_WARNING "%s did not call scsi_unregister\n", sht->name); + dump_stack(); + + list_for_each_entry_safe(shost, s, &sht->legacy_hosts, sht_legacy_list) + scsi_unregister(shost); +} + +module_init(init_this_scsi_driver); +module_exit(exit_this_scsi_driver); |