On Tue, Mar 14, 2017 at 03:00:48PM +0300, Dan Carpenter wrote: > On Mon, Mar 13, 2017 at 12:37:32PM +1100, Tobin C. Harding wrote: > > if (!tty || tty->magic != TTY_MAGIC) > > - return rc; > > + return -EIO; > > > > [ snip ] > > > if (!tty || tty->magic != TTY_MAGIC) > > - return rc; > > + return -EFAULT; > > My recolection is that these checks are totally unecessary. They're > basically a really rubbish check for memory corruption. But could > you make them return consistent error codes? -EIO is fine.
Got it, thanks. I have read the error codes a hundred times and don't feel like I know which ones go with which errors. This direction is mos appreciated. > > > @@ -2427,7 +2423,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, > > unsigned int cmd, > > rc = tty_check_change(tty); > > spin_unlock_irqrestore(&ch->ch_lock, flags); > > if (rc) > > - return rc; > > + return -ENODEV; > > Please preserve the error code from tty_check_change() here (and similar > places). My mistake. Will fix it. thanks, Tobin. _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
