[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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