On 2020-10-25 17:56:47 [+0100], Johan Hovold wrote: > There's a ton of issues with this driver, but this is arguably making > things worse. A line discipline may call write() from just about any > context so we cannot rely on tty being non-NULL here (e.g. PPP). I wasn't aware of that. I've been looking at the callers each time a `tty' was passed it looked like a preemptible context (due to mutex / GFP_KERNEL) and so on. > > Johan Sebastian
