scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state()

Assign fc_vport to ln->fc_vport before calling csio_fcoe_alloc_vnp() to
avoid a NULL pointer dereference in csio_vport_set_state().

ln->fc_vport is dereferenced in csio_vport_set_state().

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/csiostor/csio_attr.c b/drivers/scsi/csiostor/csio_attr.c
index 8a004036e3d72a666d3f49e22ee83539f165ba75..9bd2bd8dc2be24692c8ad72b13a1243721a5284c 100644 (file)
--- a/drivers/scsi/csiostor/csio_attr.c
+++ b/drivers/scsi/csiostor/csio_attr.c
@@ -594,12 +594,12 @@ csio_vport_create(struct fc_vport *fc_vport, bool disable)
        }
 
        fc_vport_set_state(fc_vport, FC_VPORT_INITIALIZING);
+       ln->fc_vport = fc_vport;
 
        if (csio_fcoe_alloc_vnp(hw, ln))
                goto error;
 
        *(struct csio_lnode **)fc_vport->dd_data = ln;
-       ln->fc_vport = fc_vport;
        if (!fc_vport->node_name)
                fc_vport->node_name = wwn_to_u64(csio_ln_wwnn(ln));
        if (!fc_vport->port_name)