Objective C memory leak issue

Question

The Leaks instrument tells me that I have a leak in this code fragment. Why is this so?

This code fragment is in viewDidLoad().

UINavigationItem *navItem=[self navigationItem];

UIBarButtonItem *addFeed = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addFeed)];
[navItem setRightBarButtonItem:addFeed]; // leaks says that 128 bytes leaked
[addFeed release];

UIBarButtonItem *reload = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh  target:self action:@selector(reload)];
[navItem setLeftBarButtonItem:reload]; // leaks says that 128 bytes leaked here too !
[reload release];
[navItem release];

Answer 1

You should not be releasing navItem. You did not alloc/retain/new/create it, so you do not release it.

Other than that, your code looks fine. Is that everything in the method?