On 20-09-04 08:37, Florian Fainelli wrote: ... > > Is this really necessary? The devm_clk_get_optional() function already > > registers the devm_clk_release() hook. > > Yes, because you can unbind the PHY driver from sysfs, and if you want to > bind that driver again, which will call .probe() again, you must undo > strictly everything that .probe() did. The embedded mdio_device does not go > away, so there will be no automatic freeing of resources. Using devm_* may > be confusing, so using just the plain clk_get() and clk_put() may be clearer > here. Hi Florian, sorry for asking again... I'm getting a bit confused during applying your comments to my smsc-phy patchset. A few drivers are using the devm_kzalloc() (including your bcm7xxx.c and my smsc.c). Does this mean that those drivers have a memory leak since the mdio_device does not disappear and so the memory allocated during probe() isn't freed? Regards, Marco