Cleanup.

Author: CodeBlanch

src/OpenTelemetry/Trace/TracerProviderExtensions.cs

@@ -40,8 +40,6 @@ public static TracerProvider AddProcessor(this TracerProvider provider, BaseProc
                 throw new ArgumentException($"{nameof(provider)} is not an instance of TracerProviderSdk");
             }
 
-            processor.SetParentProvider(trait);
-
             return trait.AddProcessor(processor);
         }
     }

src/OpenTelemetry/Trace/TracerProviderSdk.cs

@@ -46,8 +46,6 @@ internal TracerProviderSdk(
 
             foreach (var processor in processors)
             {
-                processor.SetParentProvider(this);
-
                 this.AddProcessor(processor);
             }
 
@@ -174,6 +172,8 @@ internal TracerProviderSdk AddProcessor(BaseProcessor<Activity> processor)
                 throw new ArgumentNullException(nameof(processor));
             }
 
+            processor.SetParentProvider(this);
+
             if (this.processor == null)
             {
                 this.processor = processor;