iPhone - how to declare a method and avoid leaks -

suppose have method this

- (uibutton *) createbuttonatx:(cgfloat)vx y:(cgfloat)vy{   //... bla bla bla...   //at point have   uibutton *mybutton = [[uibutton alloc] initwithframe:myframe];  // have alloc here...   // ... more bla bla ,  return mybutton; } 

as button allocated , not released technically leak, right?

on main code, caller like

uibutton *onebutton = [self createbuttonatx:100 y:100]; [myview addsubview:onebutton]; [onebutton release]; 

in theory, onebutton mybutton on createbutton method being released on main code, so, instruments point method leaking...

how solve that? using autorelease?

thanks

replace last line with

return [mybutton autorelease]; 

the truth view retains subview when use -addsubview:.