diff options
| author | Mike Christie <michaelc@cs.wisc.edu> | 2009-11-18 06:25:16 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-12-10 17:54:11 +0300 |
| commit | 48de68a40aef032a2e198437f4781a83bfb938db (patch) | |
| tree | f3a1a5159ec2994dfca79b560a1a8a09eb66f7ed | |
| parent | d685c262083dcd5fd98b7499b22a377a3225229c (diff) | |
| download | linux-48de68a40aef032a2e198437f4781a83bfb938db.tar.xz | |
[SCSI] fc class: fix fc_transport_init error handling
If transport_class_register fails we should unregister any
registered classes, or we will leak memory or other
resources.
I did a quick modprobe of scsi_transport_fc to test the
patch.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 6531c91501be..ddfcecd5099f 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -649,11 +649,22 @@ static __init int fc_transport_init(void) return error; error = transport_class_register(&fc_vport_class); if (error) - return error; + goto unreg_host_class; error = transport_class_register(&fc_rport_class); if (error) - return error; - return transport_class_register(&fc_transport_class); + goto unreg_vport_class; + error = transport_class_register(&fc_transport_class); + if (error) + goto unreg_rport_class; + return 0; + +unreg_rport_class: + transport_class_unregister(&fc_rport_class); +unreg_vport_class: + transport_class_unregister(&fc_vport_class); +unreg_host_class: + transport_class_unregister(&fc_host_class); + return error; } static void __exit fc_transport_exit(void) |