Re: Little rework of usbserial in 2.4

[Nish Aravamudan <nish.aravamudan@gmail.com>]

On Tue, 21 Dec 2004 12:52:22 -0800, Pete Zaitcev <zaitcev@redhat.com> wrote:
> On Sun, 12 Dec 2004 15:47:44 -0800, Nish Aravamudan <nish.aravamudan@gmail.com> wrote:
> 
> > > diff -urpN -X dontdiff linux-2.4.28-bk3/drivers/usb/serial/usbserial.c linux-2.4.28-bk3-sx4/drivers/usb/serial/usbserial.c
> > > --- linux-2.4.28-bk3/drivers/usb/serial/usbserial.c     2004-11-22 23:04:19.000000000 -0800
> 
> > > @@ -1803,6 +1820,12 @@ static void __exit usb_serial_exit(void)
> > >
> > >         usb_deregister(&usb_serial_driver);
> > >         tty_unregister_driver(&serial_tty_driver);
> > > +
> > > +       while (!list_empty(&usb_serial_driver_list)) {
> > > +               err("%s - module is in use, hanging...\n", __FUNCTION__);
> > > +               set_current_state(TASK_UNINTERRUPTIBLE);
> > > +               schedule_timeout(5*HZ);
> > > +       }
> 
> > Please consider using msleep() here instead of schedule_timeout().
> 
> No, Nish, it's 2.4. There's no msleep here. I can create something like
> "drivers/usb/serial/compat26.h", similar to include/linux/libata-compat.h,
> but I do not think it's worth the trouble at present juncture.

I agree that it's not worth the trouble. Sorry, I was under the
impression that Kernel-Janitors had pushed a series of patches to
backport msleep(). Maybe they haven't made it to mainline yet. Sorry
for the noise.

-Nish