fix ineff assign to err

Author: dopey

command/certificate/create.go

@@ -327,16 +327,19 @@ func createAction(ctx *cli.Context) error {
 
 	if noPass {
 		_, err = pemutil.Serialize(priv, pemutil.ToFile(keyFile, 0600))
+		if err != nil {
+			return errors.WithStack(err)
+		}
 	} else {
 		pass, err := utils.ReadPassword("Please enter the password to encrypt the private key: ")
 		if err != nil {
 			return errors.Wrap(err, "error reading password")
 		}
 		_, err = pemutil.Serialize(priv, pemutil.WithEncryption(pass),
 			pemutil.ToFile(keyFile, 0600))
-	}
-	if err != nil {
-		return errors.WithStack(err)
+		if err != nil {
+			return errors.WithStack(err)
+		}
 	}
 	return nil
 }

command/crypto/keypair.go

@@ -165,16 +165,19 @@ func createAction(ctx *cli.Context) error {
 
 	if noPass {
 		_, err = pemutil.Serialize(priv, pemutil.ToFile(privFile, 0600))
+		if err != nil {
+			return errors.WithStack(err)
+		}
 	} else {
 		pass, err := utils.ReadPassword("Please enter the password to encrypt the private key: ")
 		if err != nil {
 			return errors.Wrap(err, "error reading password")
 		}
 		_, err = pemutil.Serialize(priv, pemutil.WithEncryption(pass),
 			pemutil.ToFile(privFile, 0600))
-	}
-	if err != nil {
-		return errors.WithStack(err)
+		if err != nil {
+			return errors.WithStack(err)
+		}
 	}
 
 	return nil