Memory Leak Problem with MKMapViewDelegate method

The code I have is:

MKPinAnnotationView *pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"Pin"];

if(pinView == nil)
{
    pinView = 开发者_开发知识库[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"Pin"];
    pinView.annotation = annotation;
    pinView.animatesDrop = YES;
    [pinView setCanShowCallout:YES];

    if([[(MapPin *)annotation title] isEqualToString:@"Starting Location"])
    {
        pinView.pinColor = MKPinAnnotationColorGreen;
        pinView.rightCalloutAccessoryView = nil;
    }
    else
    {
        pinView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
        pinView.pinColor = MKPinAnnotationColorRed;
    }

}

return pinView;

The problem of course is that I have to return pinView, which I allocate and need to release at some point. However, once I return pinView, I cannot release it because the method call terminates. How do I get around this? Thanks!

Using autorelease is a way to solve issues like this~ Although, be aware of what autorelease pool your object is being placed into to ensure proper lifespan. =)

Very valuable documentation link for anyone figuring this stuff out: http://developer.apple.com/library/ios/#documentation/Cocoa/Conceptual/MemoryMgmt/Articles/mmRules.html