Re: [PATCH v1 1/1] drivers: base: Fix NULL pointer exception in __platform_driver_probe()

[Kuppuswamy, Sathyanarayanan]

Hi Greg,

On 4/28/20 12:03 PM, Greg KH wrote:
> On Wed, Apr 08, 2020 at 02:40:03PM -0700, sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx wrote:
> > From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
> >
> > If platform bus driver registration is failed then,
>
> How is your platform driver registration failing?  What caused that, is
> it an in-kernel problem with something?  How can it be triggered?
In my case I triggered it intentionally. For one of our internal
project we want to strictly control the number of drivers/devices
allowed in kernel. To verify the feasibility of adding above support,
I intentionally failed few bus drivers and checked the behavior. In
one of those tests I hence came across the mentioned issue.

In any case, platform bus driver registration failure is a valid case
right ? Any issue we notice when this happens needs to be handled right?
> thanks,
>
> greg k-h