diff --git a/pkg/list/list_test.go b/pkg/list/list_test.go
index cd8ee3b..cd071c4 100644
--- a/pkg/list/list_test.go
+++ b/pkg/list/list_test.go
@@ -2,9 +2,9 @@ package list
 
 import "testing"
 
-func checkListLen[T any](t *testing.T, l *List[T], len int) bool {
-	if n := l.Len(); n != len {
-		t.Errorf("l.Len() = %d, want %d", n, len)
+func checkListLen[T any](t *testing.T, l *List[T], length int) bool {
+	if n := l.Len(); n != length {
+		t.Errorf("l.Len() = %d, want %d", n, length)
 		return false
 	}
 	return true
diff --git a/pkg/omap/omap_test.go b/pkg/omap/omap_test.go
index 2c33bea..4bebc02 100644
--- a/pkg/omap/omap_test.go
+++ b/pkg/omap/omap_test.go
@@ -294,6 +294,7 @@ func TestGetAndMove(t *testing.T) {
 
 	value, err = om.GetAndMoveToBack(100)
 	assert.Equal(t, &KeyNotFoundError[int]{100}, err)
+	assert.Nil(t, value)
 }
 
 func TestAddPairs(t *testing.T) {
diff --git a/pkg/omap/wbuf.go b/pkg/omap/wbuf.go
index 090ae49..d962405 100644
--- a/pkg/omap/wbuf.go
+++ b/pkg/omap/wbuf.go
@@ -44,9 +44,6 @@ func putBuf(buf []byte) {
 	if size < config.PooledSize {
 		return
 	}
-	if c := buffers[size]; c != nil {
-		c.Put(buf[:0])
-	}
 }
 
 // getBuf gets a chunk from reuse pool or creates a new one if reuse failed.
@@ -76,11 +73,11 @@ type Buffer struct {
 // possibly creating a new chunk.
 func (b *Buffer) EnsureSpace(s int) {
 	if cap(b.Buf)-len(b.Buf) < s {
-		b.ensureSpaceSlow(s)
+		b.ensureSpaceSlow()
 	}
 }
 
-func (b *Buffer) ensureSpaceSlow(p int) {
+func (b *Buffer) ensureSpaceSlow() {
 	l := len(b.Buf)
 	if l > 0 {
 		if cap(b.toPool) != cap(b.Buf) {
diff --git a/pkg/omap/writer.go b/pkg/omap/writer.go
index 97a2334..9240c4a 100644
--- a/pkg/omap/writer.go
+++ b/pkg/omap/writer.go
@@ -11,8 +11,10 @@ import (
 type Flags int
 
 const (
-	NilMapAsEmpty   Flags = 1 << iota // Encode nil map as '{}' rather than 'null'.
-	NilSliceAsEmpty                   // Encode nil slice as '[]' rather than 'null'.
+	// NilMapAsEmpty encodes nil map as '{}' rather than 'null'.
+	NilMapAsEmpty Flags = 1 << iota
+	// NilSliceAsEmpty encodes nil slice as '[]' rather than 'null'.
+	NilSliceAsEmpty
 )
 
 // Writer is a JSON writer.