UINavigationController popViewControllerAnimated: crash in iOS 6

Question

The code below works fine in iOS 4 and 5 but crashes in iOS 6 with EXC_BAD_ACCESS. I\'d appreciate any help in troubleshooting it. This code is being called in

Answer 1

Though super late to party... Hope this might help someone in future. I opened a very old code...

Enabling ARC mode and then resolving all the compiler warnings/error fixed it automatically.