Enable nullable for more files

1 files changed, 6 insertions, 8 deletions

diff --git a/Emby.Server.Implementations/Devices/DeviceId.cs b/Emby.Server.Implementations/Devices/DeviceId.cs
index b3f5549bc..2459178d8 100644
--- a/Emby.Server.Implementations/Devices/DeviceId.cs
+++ b/Emby.Server.Implementations/Devices/DeviceId.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 #pragma warning disable CS1591
 
 using System;
@@ -17,19 +15,19 @@ namespace Emby.Server.Implementations.Devices
         private readonly ILogger<DeviceId> _logger;
         private readonly object _syncLock = new object();
 
-        private string _id;
+        private string? _id;
 
-        public DeviceId(IApplicationPaths appPaths, ILoggerFactory loggerFactory)
+        public DeviceId(IApplicationPaths appPaths, ILogger<DeviceId> logger)
         {
             _appPaths = appPaths;
-            _logger = loggerFactory.CreateLogger<DeviceId>();
+            _logger = logger;
         }
 
-        public string Value => _id ?? (_id = GetDeviceId());
+        public string Value => _id ??= GetDeviceId();
 
         private string CachePath => Path.Combine(_appPaths.DataPath, "device.txt");
 
-        private string GetCachedId()
+        private string? GetCachedId()
         {
             try
             {
@@ -65,7 +63,7 @@ namespace Emby.Server.Implementations.Devices
             {
                 var path = CachePath;
 
-                Directory.CreateDirectory(Path.GetDirectoryName(path));
+                Directory.CreateDirectory(Path.GetDirectoryName(path) ?? throw new InvalidOperationException("Path can't be a root directory."));
 
                 lock (_syncLock)
                 {