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[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>
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1 changed files with 14 additions and 3 deletions
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@ -649,11 +649,22 @@ static __init int fc_transport_init(void)
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return error;
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error = transport_class_register(&fc_vport_class);
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if (error)
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return error;
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goto unreg_host_class;
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error = transport_class_register(&fc_rport_class);
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if (error)
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goto unreg_vport_class;
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error = transport_class_register(&fc_transport_class);
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if (error)
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goto unreg_rport_class;
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return 0;
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unreg_rport_class:
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transport_class_unregister(&fc_rport_class);
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unreg_vport_class:
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transport_class_unregister(&fc_vport_class);
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unreg_host_class:
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transport_class_unregister(&fc_host_class);
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return error;
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return transport_class_register(&fc_transport_class);
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}
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static void __exit fc_transport_exit(void)
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