From c1fad4176464281e776022dee7d029144afbeb13 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Tue, 24 Nov 2009 16:54:04 +0100 Subject: [SCSI] zfcp: Implement module unloading With the reference counting for zfcp data structures, it is now possible to implement module unloading again. Module unloading requires to free all data structures in the module exit function. This is done by unregistering zfcp from s390 cio and the SCSI midlayer first in the module exit function. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_aux.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'drivers/s390/scsi/zfcp_aux.c') diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index baef2ec7482f..12de1ce9a92d 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -189,7 +189,7 @@ static int __init zfcp_module_init(void) goto out_misc; } - retval = zfcp_ccw_register(); + retval = ccw_driver_register(&zfcp_ccw_driver); if (retval) { pr_err("The zfcp device driver could not register with " "the common I/O layer\n"); @@ -218,6 +218,19 @@ out: module_init(zfcp_module_init); +static void __exit zfcp_module_exit(void) +{ + ccw_driver_unregister(&zfcp_ccw_driver); + misc_deregister(&zfcp_cfdc_misc); + fc_release_transport(zfcp_data.scsi_transport_template); + kmem_cache_destroy(zfcp_data.gid_pn_cache); + kmem_cache_destroy(zfcp_data.sr_buffer_cache); + kmem_cache_destroy(zfcp_data.qtcb_cache); + kmem_cache_destroy(zfcp_data.gpn_ft_cache); +} + +module_exit(zfcp_module_exit); + /** * zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN * @port: pointer to port to search for unit -- cgit v1.2.1