On Thu, Oct 17, 2013 at 03:51:54PM +0200, Lars-Peter Clausen wrote: > On 10/17/2013 03:37 PM, Timur Tabi wrote: > > I understand that, but I'm trying to figure out why of_iomap() is okay for > > hundreds of other drivers, but not this one. I've used it dozens of times > > myself, without ever worrying about overlapping regions. > The driver would work fine with just of_iomap(). But the resource range > check comes basically for free and it does help to catch errors, so I'd > recommend on using it rather than not using it. There's also the fact that it's a devm_ function which means less error handling code that we can break which is nice. There's probably a case for an improved OF helper here...