address comments

2 files changed, 3 insertions, 5 deletions

diff --git a/src/objective-c/RxLibrary/GRXConcurrentWriteable.m b/src/objective-c/RxLibrary/GRXConcurrentWriteable.m
index d8491d2aed..115195463d 100644
--- a/src/objective-c/RxLibrary/GRXConcurrentWriteable.m
+++ b/src/objective-c/RxLibrary/GRXConcurrentWriteable.m
@@ -113,10 +113,8 @@
 
 - (void)cancelSilently {
   dispatch_async(_writeableQueue, ^{
-    @synchronized(self) {
-      if (self->_alreadyFinished) {
-        return;
-      }
+    if (self->_alreadyFinished) {
+      return;
     }
     self.writeable = nil;
   });
diff --git a/src/objective-c/RxLibrary/GRXWriter.h b/src/objective-c/RxLibrary/GRXWriter.h
index ac1f7b9c4c..df4c80c28d 100644
--- a/src/objective-c/RxLibrary/GRXWriter.h
+++ b/src/objective-c/RxLibrary/GRXWriter.h
@@ -82,7 +82,7 @@ typedef NS_ENUM(NSInteger, GRXWriterState) {
  * the corresponding value, and that's useful for advanced use cases like pausing an writer. For
  * more details, see the documentation of the enum further down. The property is thread safe.
  */
-@property(atomic) GRXWriterState state;
+@property GRXWriterState state;
 
 /**
  * Transition to the Started state, and start sending messages to the writeable (a reference to it