netdev - Re: [PATCH 1/2] net: phy: Set the driver when registering an MDIO bus device

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Message-ID: <CAGVrzcb76YB-9VNu4HGC2ypa2iBs7LLjWT1m9WEw5CmZo84jXQ@mail.gmail.com>
Date:	Wed, 23 Jul 2014 11:26:31 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc:	netdev <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Gregory Clement <gregory.clement@...e-electrons.com>
Subject: Re: [PATCH 1/2] net: phy: Set the driver when registering an MDIO bus device

2014-07-22 17:16 GMT-07:00 Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>:
> mdiobus_register() registers a device which is already bound to a driver.
> Hence, the driver pointer should be set properly in order to track down
> the driver associated to the MDIO bus.
>
> This will be used to allow ethernet driver to pin down a MDIO bus driver,
> preventing it from being unloaded while the PHY device is running.
>
> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Tested-by: Florian Fainelli <f.fainelli@...il.com>

> ---
>  drivers/net/phy/mdio_bus.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
> index 4eaadcf..203651e 100644
> --- a/drivers/net/phy/mdio_bus.c
> +++ b/drivers/net/phy/mdio_bus.c
> @@ -255,6 +255,7 @@ int mdiobus_register(struct mii_bus *bus)
>
>         bus->dev.parent = bus->parent;
>         bus->dev.class = &mdio_bus_class;
> +       bus->dev.driver = bus->parent->driver;
>         bus->dev.groups = NULL;
>         dev_set_name(&bus->dev, "%s", bus->id);
>
> --
> 2.0.1
>



-- 
Florian
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