[PATCH] evh_bytechan: fix out of bounds accesses

[Timur Tabi]

On 1/13/20 8:34 AM, Laurentiu Tudor wrote:
> There are a few users that I know of, but I can't tell if that's enough
> to justify keeping the driver.
> 
> [1]https://source.codeaurora.org/external/qoriq/qoriq-yocto-sdk/hypervisor/

IIRC, the driver is the only reasonable way to get a serial console from 
a guest.  So if there are users of the hypervisor, then I think there's 
a good chance at least one is using the byte channel driver.