From 48de68a40aef032a2e198437f4781a83bfb938db Mon Sep 17 00:00:00 2001 From: Mike Christie <michaelc@cs.wisc.edu> Date: Tue, 17 Nov 2009 21:25:16 -0600 Subject: [PATCH] [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> --- drivers/scsi/scsi_transport_fc.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 6531c91501be4b..ddfcecd5099f56 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) -- GitLab