Yes, I saw that with the staging Octeon driver.
Your patch works for me too.
Thanks Florian!
On Tue, Dec 20, 2016 at 4:33 PM, Florian Fainelli <f.faine...@gmail.com> wrote:
> On 12/20/2016 03:51 PM, Ruslan Babayev wrote:
>> Fixes a crash observed on Octeon.
>>
>> Signed-off-by: Ruslan Babayev <rus...@babayev.com>
>> Fixes: ec988ad78ed6 ("phy: Don't increment MDIO bus refcount unless it's a
>> different owner")
>
> Assuming you saw this with the staging Octeon driver, a fix has already
> been submitted:
>
> https://lkml.org/lkml/2016/12/14/756
>
> If this is with a different driver, I would rather we fix it in a
> similar way that the fix proposed above.
>
> Thanks
>
>> ---
>> drivers/net/phy/phy_device.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
>> index 9c06f8028f0c..043328b85643 100644
>> --- a/drivers/net/phy/phy_device.c
>> +++ b/drivers/net/phy/phy_device.c
>> @@ -905,7 +905,8 @@ EXPORT_SYMBOL(phy_attached_print);
>> int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
>> u32 flags, phy_interface_t interface)
>> {
>> - struct module *ndev_owner = dev->dev.parent->driver->owner;
>> + struct device *parent = dev->dev.parent;
>> + struct module *ndev_owner = parent ? parent->driver->owner : NULL;
>> struct mii_bus *bus = phydev->mdio.bus;
>> struct device *d = &phydev->mdio.dev;
>> int err;
>>
>
>
> --
> Florian
