PopViewControllerAnimated not working. No ref to calling VC

Question

I have a UITabBarViewController containing 4 individual ViewControllers. Each VC has a UIBarButtonItem on their NavigationBar to take you to a "postPage". You get to the post page by using this code, which presents the embedded NavigationController

- (void)postInvoked:(UIBarButtonItem *)sender
{
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    UIViewController *postPage = [storyboard instantiateViewControllerWithIdentifier: @"postPageLead"];
    [self presentViewController:postPage animated:YES completion:nil];
}

Then in the PostViewController.m, I have an IBAction that is triggered when the user clicks the UIBarButtonItem named "Back":

- (IBAction)backOnPost:(UIBarButtonItem *)sender
{
    [self.parentViewController.navigationController popViewControllerAnimated:YES];
}

This isn't working.. Keep in mind that the calling VC isn't remembered once you arrive at the postpage. How do I traverse back to the original calling ViewController?(how do I reference the caller, and is popViewControllerAnimated: necessary?)

Answer 1

Dismiss it like this instead and it should work fine.

- (IBAction)backOnPost:(UIBarButtonItem *)sender
{
    [self dismissViewControllerAnimated:YES completion:nil];
}

Answer 2

I fixed it using:

- (IBAction)backOnPost:(UIBarButtonItem *)sender
{
    [self dismissViewControllerAnimated:YES completion:nil];
}