Removing unnecessary 'err' vars
diff --git a/openstack/networking/v2/ports/requests.go b/openstack/networking/v2/ports/requests.go
index 0c4ae74..da738d2 100644
--- a/openstack/networking/v2/ports/requests.go
+++ b/openstack/networking/v2/ports/requests.go
@@ -104,12 +104,11 @@
 // Get retrieves a specific port based on its unique ID.
 func Get(c *gophercloud.ServiceClient, id string) GetResult {
 	var res GetResult
-	_, err := perigee.Request("GET", getURL(c, id), perigee.Options{
+	_, res.Err = perigee.Request("GET", getURL(c, id), perigee.Options{
 		MoreHeaders: c.Provider.AuthenticatedHeaders(),
 		Results:     &res.Resp,
 		OkCodes:     []int{200},
 	})
-	res.Err = err
 	return res
 }
 
@@ -172,14 +171,14 @@
 	}
 
 	// Response
-	_, err := perigee.Request("POST", createURL(c), perigee.Options{
+	_, res.Err = perigee.Request("POST", createURL(c), perigee.Options{
 		MoreHeaders: c.Provider.AuthenticatedHeaders(),
 		ReqBody:     &reqBody,
 		Results:     &res.Resp,
 		OkCodes:     []int{201},
 		DumpReqJson: true,
 	})
-	res.Err = err
+
 	return res
 }
 
@@ -226,23 +225,21 @@
 
 	// Response
 	var res UpdateResult
-	_, err := perigee.Request("PUT", updateURL(c, id), perigee.Options{
+	_, res.Err = perigee.Request("PUT", updateURL(c, id), perigee.Options{
 		MoreHeaders: c.Provider.AuthenticatedHeaders(),
 		ReqBody:     &reqBody,
 		Results:     &res.Resp,
 		OkCodes:     []int{200, 201},
 	})
-	res.Err = err
 	return res
 }
 
 // Delete accepts a unique ID and deletes the port associated with it.
 func Delete(c *gophercloud.ServiceClient, id string) DeleteResult {
 	var res DeleteResult
-	_, err := perigee.Request("DELETE", deleteURL(c, id), perigee.Options{
+	_, res.Err = perigee.Request("DELETE", deleteURL(c, id), perigee.Options{
 		MoreHeaders: c.Provider.AuthenticatedHeaders(),
 		OkCodes:     []int{204},
 	})
-	res.Err = err
 	return res
 }