[librsvg: 4/51] turbulence.rs: Don't create a NodeError directly

[Federico Mena Quintero <federico src gnome org>]

commit f32996d89fda65dac68ed9dd0fe6d1180ed41894
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Dec 16 20:10:56 2019 -0600

    turbulence.rs: Don't create a NodeError directly

 rsvg_internals/src/filters/turbulence.rs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/rsvg_internals/src/filters/turbulence.rs b/rsvg_internals/src/filters/turbulence.rs
index 1320ac47..6bf37775 100644
--- a/rsvg_internals/src/filters/turbulence.rs
+++ b/rsvg_internals/src/filters/turbulence.rs
@@ -2,7 +2,7 @@ use cairo::{self, ImageSurface};
 use markup5ever::{expanded_name, local_name, namespace_url, ns, QualName};
 
 use crate::drawing_ctx::DrawingCtx;
-use crate::error::{AttributeResultExt, NodeError};
+use crate::error::*;
 use crate::node::{CascadedValues, NodeResult, NodeTrait, RsvgNode};
 use crate::parsers;
 use crate::property_bag::PropertyBag;
@@ -66,14 +66,13 @@ impl NodeTrait for FeTurbulence {
             match attr.expanded() {
                 expanded_name!(svg "baseFrequency") => {
                     self.base_frequency = parsers::number_optional_number(value)
-                        .attribute(attr.clone())
                         .and_then(|(x, y)| {
                             if x >= 0.0 && y >= 0.0 {
                                 Ok((x, y))
                             } else {
-                                Err(NodeError::value_error(attr, "values can't be negative"))
+                                Err(ValueErrorKind::value_error("values can't be negative"))
                             }
-                        })?
+                        }).attribute(attr)?
                 }
                 expanded_name!(svg "numOctaves") => {
                     self.num_octaves = parsers::integer(value).attribute(attr)?