From e0b7d070208df5f52a9933c2c9761ebb2b0ad65d Mon Sep 17 00:00:00 2001
From: Matthew Chiaravalloti <matthew.chiaravalloti@mongodb.com>
Date: Mon, 10 Sep 2018 10:40:06 -0400
Subject: [PATCH] Add deferred call to close DocumentResult's cursor

GODRIVER-373

Change-Id: I7addfb359952a5abfccd40c59bf294d3e30be16a
---
 .errcheck-excludes       | 1 +
 mongo/document_result.go | 1 +
 2 files changed, 2 insertions(+)

diff --git a/.errcheck-excludes b/.errcheck-excludes
index bf21036bb0..1fafa0ca60 100644
--- a/.errcheck-excludes
+++ b/.errcheck-excludes
@@ -4,6 +4,7 @@
 (*github.com/mongodb/mongo-go-driver/core/topology.Server).Close
 (*github.com/mongodb/mongo-go-driver/core/connection.pool).closeConnection
 (github.com/mongodb/mongo-go-driver/core/wiremessage.ReadWriteCloser).Close
+(github.com/mongodb/mongo-go-driver/mongo.Cursor).Close
 (net.Conn).Close
 encoding/pem.Encode
 fmt.Fprintf
diff --git a/mongo/document_result.go b/mongo/document_result.go
index 9e0aced5b7..e73a06dd5a 100644
--- a/mongo/document_result.go
+++ b/mongo/document_result.go
@@ -40,6 +40,7 @@ func (dr *DocumentResult) Decode(v interface{}) error {
 		}
 		return bson.Unmarshal(dr.rdr, v)
 	case dr.cur != nil:
+		defer dr.cur.Close(context.TODO())
 		if !dr.cur.Next(context.TODO()) {
 			if err := dr.cur.Err(); err != nil {
 				return err