[U-Boot] dm: usb: Prevent NULL hub in usb_device_info()

[Bernhard Nortmann]

Hi Hans!

Am 03.07.2016 um 20:21 schrieb Hans de Goede:
> Hi,
>
> On 02-07-16 23:13, Hans de Goede wrote:
>> Hi,
>> [...]
>>
>> I've prepared 2 patches which re-use the "usb tree" code
>> rather then re-inventing the wheel again:
>>
>> https://github.com/jwrdegoede/u-boot-sunxi/commit/fecf9576247c9423a20570057a1de59f1dbc2da1 
>>
>> https://github.com/jwrdegoede/u-boot-sunxi/commit/d61f186f494062539418ac9da800a354258a4ad2 
>>
>>
>> As an added bonus these actually result in removing some code
>> instead of duplicating it.
>>
>> Note these are only compile tested yet. I'll properly
>> test them tomorrow and then submit them officially.
>
> Ok I've just completed a battery of tests and these 2 look good,
> I'll submit them upstream right after this mail.
>
> Regards,
>
> Hans


I can confirm that applying these two patches on top of 2016.07-rc3 
solves the
"usb info" problem I've been observing with sun7i-a20.

Tested-by: Bernhard Nortmann <bernhard.nortmann at web.de>

Regards, B. Nortmann