[SCSI] zfcp: Add port only once to FC transport class
When calling fc_remote_port_add make sure to not call it again before
fc_remote_port_delete has been called. In other words, ensure to
create a new fc_rport, then delete it, then create a new one again.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 967ede7..ba32709 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -534,6 +534,9 @@
struct fc_rport_identifiers ids;
struct fc_rport *rport;
+ if (port->rport)
+ return;
+
ids.node_name = port->wwnn;
ids.port_name = port->wwpn;
ids.port_id = port->d_id;
@@ -557,8 +560,10 @@
{
struct fc_rport *rport = port->rport;
- if (rport)
+ if (rport) {
fc_remote_port_delete(rport);
+ port->rport = NULL;
+ }
}
void zfcp_scsi_schedule_rport_register(struct zfcp_port *port)