diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 07ec997c5d4ff97d22f9c2ae92b28017f7190fc9..b7689f3d05f529d113a243afd74df6a477438d40 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1739,10 +1739,19 @@ EXPORT_SYMBOL_GPL(iscsi_queuecommand);
 
 int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason)
 {
-	if (reason != SCSI_QDEPTH_DEFAULT)
+	switch (reason) {
+	case SCSI_QDEPTH_DEFAULT:
+		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+		break;
+	case SCSI_QDEPTH_QFULL:
+		scsi_track_queue_full(sdev, depth);
+		break;
+	case SCSI_QDEPTH_RAMP_UP:
+		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+		break;
+	default:
 		return -EOPNOTSUPP;
-
-	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+	}
 	return sdev->queue_depth;
 }
 EXPORT_SYMBOL_GPL(iscsi_change_queue_depth);