[banshee] HardwareManager: fix some consistency nitpicks from previous change

[Andrés Aragoneses <aaragoneses src gnome org>]

commit 5389a92f5f56fddbb1391b02741831568f9635ac
Author: Andrés G. Aragoneses <knocte gmail com>
Date:   Sun Jun 22 12:29:17 2014 +0200

    HardwareManager: fix some consistency nitpicks from previous change
    
    Previous commit [1] had some consistency nitpicks that I only
    noticed now.
    
    [1] https://git.gnome.org/browse/banshee/commit/?id=5a5cb82394519779c4ba641b7e993f4015714417

 .../Banshee.Hardware.Gio/HardwareManager.cs        |    8 +++++---
 .../Banshee.Hardware.Gio/LowLevel/Manager.cs       |    6 +++---
 .../Banshee.Hardware/HardwareManager.cs            |    2 +-
 3 files changed, 9 insertions(+), 7 deletions(-)
---
diff --git a/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/HardwareManager.cs 
b/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/HardwareManager.cs
index 10c506c..453059c 100644
--- a/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/HardwareManager.cs
+++ b/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/HardwareManager.cs
@@ -25,11 +25,9 @@
 // THE SOFTWARE.
 
 #if ENABLE_GIO_HARDWARE
-using System;
 using System.Collections.Generic;
 
 using Banshee.Hardware;
-using Hyena;
 
 namespace Banshee.Hardware.Gio
 {
@@ -79,8 +77,12 @@ namespace Banshee.Hardware.Gio
 
         private void HandleManagerDeviceChanged (IDevice device)
         {
+            if (device == null) {
+                return;
+            }
+
             var handler = DeviceChanged;
-            if (null != handler) {
+            if (handler != null) {
                 handler (this, new DeviceChangedEventArgs (device));
             }
         }
diff --git a/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/LowLevel/Manager.cs 
b/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/LowLevel/Manager.cs
index be2e78b..3768805 100644
--- a/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/LowLevel/Manager.cs
+++ b/src/Backends/Banshee.Gio/Banshee.Hardware.Gio/LowLevel/Manager.cs
@@ -86,19 +86,19 @@ namespace Banshee.Hardware.Gio
 
         void HandleMonitorMountAdded (object o, MountAddedArgs args)
         {
-            Hyena.Log.Debug ("Gio.Manager: Received MountAdded Signal");
+            Hyena.Log.Debug ("Gio.Manager: received MountAdded signal");
             VolumeChanged (args.Mount.Volume);
         }
 
         void HandleMonitorMountRemoved (object o, MountRemovedArgs args)
         {
-            Hyena.Log.Debug ("Gio.Manager: received MountRemoved Signal");
+            Hyena.Log.Debug ("Gio.Manager: received MountRemoved signal");
             VolumeChanged (args.Mount.Volume);
         }
 
         private void HandleMonitorVolumeAdded (object o, VolumeAddedArgs args)
         {
-            Hyena.Log.Debug ("Gio.Manager: Received VolumeAdded Signal");
+            Hyena.Log.Debug ("Gio.Manager: received VolumeAdded signal");
             var volume = GLib.VolumeAdapter.GetObject ((GLib.Object) args.Args [0]);
             if (volume == null) {
                 Hyena.Log.Error ("Gio.Manager: ignoring VolumeAdded signal with no volume");
diff --git a/src/Core/Banshee.Services/Banshee.Hardware/HardwareManager.cs 
b/src/Core/Banshee.Services/Banshee.Hardware/HardwareManager.cs
index 082ade0..9574f58 100644
--- a/src/Core/Banshee.Services/Banshee.Hardware/HardwareManager.cs
+++ b/src/Core/Banshee.Services/Banshee.Hardware/HardwareManager.cs
@@ -193,7 +193,7 @@ namespace Banshee.Hardware
         {
             lock (this) {
                 var handler = DeviceChanged;
-                if (null != handler) {
+                if (handler != null) {
                     handler (this, args);
                 }
             }