Re: [PATCH] USB: serial: fix invalid user-pointer checks

[Oliver Neukum]

On Tue, 2016-11-08 at 13:26 +0100, Johan Hovold wrote:
> Drop invalid user-pointer checks from ioctl handlers.
> 
> A NULL-pointer can be valid in user space and copy_to_user() takes
> care
> of sanity checking.

Shouldn't we bail out early in these cases?

	Regards
		Oliver