[SCSI] zfcp: Update FC pass-through support

Don't access the block layer request, get the payload length instead
from the FC job. Simplify access to the zfcp_port, only the d_id is
required, if the port is no longer accessed later. This is possible
when the els_handler does not access the port pointer from the ELS
request.

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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index e6dae3744e79..c57658f3d34f 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -1146,7 +1146,8 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
         case FSF_RESPONSE_SIZE_TOO_LARGE:
                 break;
         case FSF_ACCESS_DENIED:
-                zfcp_fsf_access_denied_port(req, port);
+                if (port)
+                        zfcp_fsf_access_denied_port(req, port);
                 break;
         case FSF_SBAL_MISMATCH:
                 /* should never occure, avoided in zfcp_fsf_send_els */