Analyzer reports that the following code leak

Question

Analyzer reports that the following code has a potential memory leak. Can anyone shed some light on this? I'm releasing the annotation that's been allocated.

  -(AddressAnnotation *)addAdress:(NSString*)placeTitle SubTitle:(NSString*)placeSubTitle Coordinate:(CLLocationCoordinate2D)coord withId:(NSInteger) placeId{
        AddressAnnotation *annotation = [[AddressAnnotation alloc] initWithCoordinate:coord];
        annotation.placeTitle = placeTitle;
        annotation.placeSubTitle = placeSubTitle;
        annotation.museumId = placeId;
        [mapView addAnnotation:annotation]; 
        return annotation;

        [annotation release];
    }

Answer 1

You are releasing after the return, so never gets called. Also note that the map view retains the annotation when you add it.

Answer 2

change

return annotation;
[annotation release];

to

return [annotation autorelease];