> > @@ -3051,14 +3051,20 @@ static __poll_t gsmld_poll(struct tty_struct *tty, struct file *file, > > __poll_t mask = 0; > > struct gsm_mux *gsm = tty->disc_data; > > > > + if (!gsm) > > + return EPOLLHUP; > > Hmm, how can this happen? It's a tty bug if it calls ld ops after NULLing > disc_data. I can remove this check if it is redundant. Should I? Best regards, Daniel Starke
