Re: [PATCH 1/7] phy: fix of_mdio_find_bus() device refcount leak

From: David Miller
Date: Mon Sep 21 2015 - 18:08:34 EST


From: Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>
Date: Mon, 21 Sep 2015 20:32:07 +0100

> In the case of the mdio mux code, I'm dropping the reference when
> either (a) we've encountered an error during initialisation and
> we're cleaning up, or (b) when the mdio mux code is being torn down
> after the mdiomux bus has been unregistered and freed. In both
> cases, we're done with the mdio bus that was returned from
> of_mdio_find_bus().
>
> In case (a), the devres code will release the kmalloc'd memory when
> mdio_mux_gpio_probe() or mdio_mux_mmioreg_probe() propagates the error
> out of their probe() function.
>
> I'm not sure why you think anything is wrong here - maybe it's the odd
> code structure to the success path at the bottom of mdio_mux_init()?

Ok I may have misread your change. I'll restudy it when you respin
the series with the commit message fixed and the DSA change added.

Thanks.
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