From 0b1d61db00c61a5bb685db112238b1bd15310348 Mon Sep 17 00:00:00 2001
From: Hemant Kumar <hekumar@redhat.com>
Date: Fri, 21 Jul 2017 18:42:11 -0400
Subject: [PATCH] Fix controller crash because of nil volume spec

For volumes that don't support bulk volume verifiction, a nil
volume spec can cause crash of controller.
---
 pkg/volume/util/operationexecutor/operation_generator.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/volume/util/operationexecutor/operation_generator.go b/pkg/volume/util/operationexecutor/operation_generator.go
index cd108dbd89d..cceabde48cf 100644
--- a/pkg/volume/util/operationexecutor/operation_generator.go
+++ b/pkg/volume/util/operationexecutor/operation_generator.go
@@ -115,6 +115,10 @@ func (og *operationGenerator) GenerateVolumesAreAttachedFunc(
 	volumeSpecMap := make(map[*volume.Spec]v1.UniqueVolumeName)
 	// Iterate each volume spec and put them into a map index by the pluginName
 	for _, volumeAttached := range attachedVolumes {
+		if volumeAttached.VolumeSpec == nil {
+			glog.Errorf("VerifyVolumesAreAttached.GenerateVolumesAreAttachedFunc: nil spec for volume %s", volumeAttached.VolumeName)
+			continue
+		}
 		volumePlugin, err :=
 			og.volumePluginMgr.FindPluginBySpec(volumeAttached.VolumeSpec)
 		if err != nil || volumePlugin == nil {