diff --git a/openstack/blockstorage/v1/volumes/requests.go b/openstack/blockstorage/v1/volumes/requests.go
index 7c063b2..b9fc456 100644
--- a/openstack/blockstorage/v1/volumes/requests.go
+++ b/openstack/blockstorage/v1/volumes/requests.go
@@ -35,32 +35,26 @@
 // Create will create a new Volume based on the values in CreateOpts. To extract
 // the Volume object from the response, call the Extract method on the
 // CreateResult.
-func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) CreateResult {
-	var r CreateResult
+func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
 	b, err := opts.ToVolumeCreateMap()
 	if err != nil {
 		r.Err = err
-		return r
+		return
 	}
 	_, r.Err = client.Post(createURL(client), b, &r.Body, &gophercloud.RequestOpts{
 		OkCodes: []int{200, 201},
 	})
-	return r
 }
 
 // Delete will delete the existing Volume with the provided ID.
-func Delete(client *gophercloud.ServiceClient, id string) DeleteResult {
-	var r DeleteResult
+func Delete(client *gophercloud.ServiceClient, id string) (r DeleteResult) {
 	_, r.Err = client.Delete(deleteURL(client, id), nil)
-	return r
 }
 
 // Get retrieves the Volume with the provided ID. To extract the Volume object
 // from the response, call the Extract method on the GetResult.
-func Get(client *gophercloud.ServiceClient, id string) GetResult {
-	var r GetResult
+func Get(client *gophercloud.ServiceClient, id string) (r GetResult) {
 	_, r.Err = client.Get(getURL(client, id), &r.Body, nil)
-	return r
 }
 
 // ListOptsBuilder allows extensions to add additional parameters to the List
@@ -113,12 +107,9 @@
 // to the volumes.Update function. For more information about the parameters, see
 // the Volume object.
 type UpdateOpts struct {
-	// OPTIONAL
-	Name string `json:"name,omitempty"`
-	// OPTIONAL
-	Description string `json:"description,omitempty"`
-	// OPTIONAL
-	Metadata map[string]string `json:"metadata,omitempty"`
+	Name        string            `json:"name,omitempty"`
+	Description string            `json:"description,omitempty"`
+	Metadata    map[string]string `json:"metadata,omitempty"`
 }
 
 // ToVolumeUpdateMap assembles a request body based on the contents of an
@@ -129,17 +120,15 @@
 
 // Update will update the Volume with provided information. To extract the updated
 // Volume from the response, call the Extract method on the UpdateResult.
-func Update(client *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) UpdateResult {
-	var r UpdateResult
+func Update(client *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) (r UpdateResult) {
 	b, err := opts.ToVolumeUpdateMap()
 	if err != nil {
 		r.Err = err
-		return r
+		return
 	}
 	_, r.Err = client.Put(updateURL(client, id), b, &r.Body, &gophercloud.RequestOpts{
 		OkCodes: []int{200},
 	})
-	return r
 }
 
 // IDFromName is a convienience function that returns a server's ID given its name.