[PATCHv3] net: mvneta: use devm_ioremap_resource() instead of of_iomap()

[David Miller]

From: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Date: Thu, 27 Mar 2014 11:39:29 +0100

> The mvneta driver currently uses of_iomap(), which has two drawbacks:
> it doesn't request the resource, and it isn't devm-style so some error
> handling is needed.
> 
> This commit switches to use devm_ioremap_resource() instead, which
> automatically requests the resource (so the I/O registers region shows
> up properly in /proc/iomem), and also is devm-style, which allows to
> get rid of some error handling to unmap the I/O registers region.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>

Does this actually fix any bugs?  It seems like the unmaps happen in
all the necessary cases.

If it's just a simplification or cleanup I'm going to apply this to
net-next.