[SCSI] lpfc: use SCSI_MLQUEUE_TARGET_BUSY when catching the rport transition race

We do want to call right back into the queuecommand during the race,
so we can just use SCSI_MLQUEUE_TARGET_BUSY.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/lpfc/lpfc_scsi.c

@@ -966,10 +966,9 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	 * Catch race where our node has transitioned, but the
 	 * transport is still transitioning.
 	 */
-	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
-		cmnd->result = ScsiResult(DID_BUS_BUSY, 0);
-		goto out_fail_command;
-	}
+	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+		goto out_target_busy;
+
 	lpfc_cmd = lpfc_get_scsi_buf(phba);
 	if (lpfc_cmd == NULL) {
 		lpfc_adjust_queue_depth(phba);
@@ -1014,6 +1013,8 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
  out_host_busy:
 	return SCSI_MLQUEUE_HOST_BUSY;
+ out_target_busy:
+	return SCSI_MLQUEUE_TARGET_BUSY;
 
  out_fail_command:
 	done(cmnd);