Address review comments

matrixorbital/lk2047t.go

@@ -12,8 +12,6 @@ import (
 	"io"
 	"sync"
 
-	//	"time"
-
 	"periph.io/x/conn/v3"
 	"periph.io/x/conn/v3/display"
 	"periph.io/x/conn/v3/gpio"
@@ -40,11 +38,12 @@ type LK2047T struct {
 	// units with LEDS, the pins are used to manipulate them. For the Adafruit
 	// USB/LCD backpack, 4 pins are exposed.
 	Pins []gpio.PinOut
-	d          conn.Conn
-	writer     io.Writer
-	mu         sync.Mutex
 	rows int
 	cols int
+
+	mu         sync.Mutex
+	d          conn.Conn
+	writer     io.Writer
 	chKeyboard chan byte
 	shutdown   chan struct{}
 }
@@ -336,8 +335,7 @@ func (dev *LK2047T) LED(number int, color LEDColor) error {
 	if err != nil {
 		return err
 	}
-	err = dev.Pins[number*2+1].Out(gpio.Level(color&Green == Green))
+	return dev.Pins[number*2+1].Out(gpio.Level(color&Green == Green))
-	return err
 }
 
 func (dev *LK2047T) String() string {