[PATCH 1/5] net: mvmdio: unmap base register address at driver removal

Florian Fainelli florian at openwrt.org
Wed Jan 30 02:35:50 EST 2013

On 01/29/2013 04:32 PM, Thomas Petazzoni wrote:
> Dear Florian Fainelli,
> On Tue, 29 Jan 2013 16:24:04 +0100, Florian Fainelli wrote:
>> Fix the driver remove callback to unmap the base register address and
>> not leak this mapping after the driver has been removed.
>> Signed-off-by: Florian Fainelli <florian at openwrt.org>
> What about using devm_request_and_ioremap() instead, in order to get
> automatic unmap on error and in the ->remove() path?

Right now, you are using of_iomap() which eases the task of fetching the 
resource and getting an ioremap cookie, which I why I kept that.

> But maybe it won't work because this memory range is claimed both by
> the MDIO driver and the Ethernet driver itself. In that case, you could
> use devm_ioremap().
Then we would loose the facility of of_iomap(), but fair enough, it can 
be inserted as a patch in this serie.


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