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SubjectRe: [lkp] [staging] 68905a14e49: kernel BUG at drivers/base/driver.c:153!
On Thu, Aug 06, 2015 at 07:28:12PM -0700, Greg Kroah-Hartman wrote:
>
>
> On Sat, Aug 01, 2015 at 01:12:05PM +0800, kernel test robot wrote:
<snip>
> > [ 12.276231] RIP
> > [ 12.276231] RIP [<ffffffff81b68e78>] driver_register+0xa8/0xe0
> > [<ffffffff81b68e78>] driver_register+0xa8/0xe0
> > [ 12.276231] RSP <ffff8800001a3e30>
> > [ 12.276231] RSP <ffff8800001a3e30>
> > [ 12.403330] ---[ end trace 075c805d53b02836 ]---
> > [ 12.403330] ---[ end trace 075c805d53b02836 ]---
>
> David, any ideas of what needs to be done to fix this?

Hi Greg,
I was having a quick look and it looks like visorchipset is not yet
initialised and the bus is not yet registered. If you remember we had a
loooong discussion in another thread "usb: ulpi: don't register drivers
if bus doesn't exist", I sent a proposed patch also. For your reference:
"http://www.spinics.net/lists/linux-usb/msg125368.html".
I think this one is the perfect example of that case here.

regards
sudip


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