diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 89ad55807012007654e5fb4888ef36ac838016fa..7de4ef14698f37dc05cab98b80845390c0318c59 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -3165,14 +3165,10 @@ destroy_port(struct lpfc_vport *vport)
 int
 lpfc_get_instance(void)
 {
-	int instance = 0;
-
-	/* Assign an unused number */
-	if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
-		return -1;
-	if (idr_get_new(&lpfc_hba_index, NULL, &instance))
-		return -1;
-	return instance;
+	int ret;
+
+	ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
+	return ret < 0 ? -1 : ret;
 }
 
 /**