[SCSI] zfcp: fix 31 bit compile warnings

drivers/s390/scsi/zfcp_aux.c: In function ‘zfcp_fsf_incoming_els_rscn’:
drivers/s390/scsi/zfcp_aux.c:1379: warning: cast from pointer to integer of
different size
drivers/s390/scsi/zfcp_aux.c: In function ‘zfcp_fsf_incoming_els_plogi’:
drivers/s390/scsi/zfcp_aux.c:1432: warning: cast from pointer to integer of
different size
drivers/s390/scsi/zfcp_aux.c: In function ‘zfcp_fsf_incoming_els_logo’:
drivers/s390/scsi/zfcp_aux.c:1457: warning: cast from pointer to integer of
different size
..

Just passing pointers rids us of these warnings and improves readability.

Signed-off-by: Martin Peschke <mp3@de.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_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index db9f538..66d3b88 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -170,9 +170,10 @@
 	BUG_ON(!zfcp_reqlist_isempty(adapter));
 	adapter->req_no = 0;
 
-	zfcp_erp_modify_adapter_status(adapter, 10, 0,
+	zfcp_erp_modify_adapter_status(adapter, 10, NULL,
 				       ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
-	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 85, 0);
+	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 85,
+				NULL);
 	zfcp_erp_wait(adapter);
 	goto out;
 
@@ -197,7 +198,7 @@
 
 	down(&zfcp_data.config_sema);
 	adapter = dev_get_drvdata(&ccw_device->dev);
-	zfcp_erp_adapter_shutdown(adapter, 0, 86, 0);
+	zfcp_erp_adapter_shutdown(adapter, 0, 86, NULL);
 	zfcp_erp_wait(adapter);
 	zfcp_erp_thread_kill(adapter);
 	up(&zfcp_data.config_sema);
@@ -223,21 +224,21 @@
 	case CIO_GONE:
 		ZFCP_LOG_NORMAL("adapter %s: device gone\n",
 				zfcp_get_busid_by_adapter(adapter));
-		zfcp_erp_adapter_shutdown(adapter, 0, 87, 0);
+		zfcp_erp_adapter_shutdown(adapter, 0, 87, NULL);
 		break;
 	case CIO_NO_PATH:
 		ZFCP_LOG_NORMAL("adapter %s: no path\n",
 				zfcp_get_busid_by_adapter(adapter));
-		zfcp_erp_adapter_shutdown(adapter, 0, 88, 0);
+		zfcp_erp_adapter_shutdown(adapter, 0, 88, NULL);
 		break;
 	case CIO_OPER:
 		ZFCP_LOG_NORMAL("adapter %s: operational again\n",
 				zfcp_get_busid_by_adapter(adapter));
-		zfcp_erp_modify_adapter_status(adapter, 11, 0,
+		zfcp_erp_modify_adapter_status(adapter, 11, NULL,
 					       ZFCP_STATUS_COMMON_RUNNING,
 					       ZFCP_SET);
-		zfcp_erp_adapter_reopen(adapter,
-					ZFCP_STATUS_COMMON_ERP_FAILED, 89, 0);
+		zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
+					89, NULL);
 		break;
 	}
 	zfcp_erp_wait(adapter);
@@ -269,7 +270,7 @@
 
 	down(&zfcp_data.config_sema);
 	adapter = dev_get_drvdata(&cdev->dev);
-	zfcp_erp_adapter_shutdown(adapter, 0, 90, 0);
+	zfcp_erp_adapter_shutdown(adapter, 0, 90, NULL);
 	zfcp_erp_wait(adapter);
 	up(&zfcp_data.config_sema);
 }