[patch 10/13] zfcp: prevent fc_remote_port_delete calls for unregistered rport

[Christof Schmitt <christof.schmitt@xxxxxxxxxx>]

From: Swen Schillig <swen@xxxxxxxxxxxx>

In case of an adapter reopen all rports have to be deleted from the 
environment. This should only happen for already registered rports
otherwise fc_remote_port_delete is called with a NULL pointer.

Signed-off-by: Swen Schillig <swen@xxxxxxxxxxxx>
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
---
 drivers/s390/scsi/zfcp_erp.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/s390/scsi/zfcp_erp.c	2008-09-30 13:52:06.000000000 +0200
+++ b/drivers/s390/scsi/zfcp_erp.c	2008-09-30 13:52:22.000000000 +0200
@@ -1236,6 +1236,8 @@ static void zfcp_erp_rports_del(struct z
 {
 	struct zfcp_port *port;
 	list_for_each_entry(port, &adapter->port_list_head, list) {
+		if (!port->rport)
+			continue;
 		fc_remote_port_delete(port->rport);
 		port->rport = NULL;
 	}

-- 
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