Re: [PATCH 0/3] Fix races on device removal

[Greg Kroah-Hartman]

On Wed, Jul 08, 2020 at 03:27:00PM +0200, Lukas Wunner wrote:
> Prevent dynamic SPI device addition below a controller which is
> being removed.  To do so, set the controller's "dead" flag using
> kill_device() (patch [3/3]).

Why is the SPI bus allowing this to happen?  Don't you have a per-bus
lock that can serialize all of this?

thanks,

greg k-h