On Wed, Nov 04, 2020 at 05:59:10PM +0100, Greg Kroah-Hartman wrote:
> On Wed, Nov 04, 2020 at 05:47:27PM +0100, Johan Hovold wrote:
> > The parallel-port restore operations is called when a driver claims the
> > port and is supposed to restore the provided state (e.g. saved when
> > releasing the port).
> >
> > Fixes: b69578df7e98 ("USB: usbserial: mos7720: add support for parallel port on moschip 7715")
> > Cc: stable <stable@xxxxxxxxxxxxxxx> # 2.6.35
> > Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
> > ---
> > drivers/usb/serial/mos7720.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
> > index 5eed1078fac8..5a5d2a95070e 100644
> > --- a/drivers/usb/serial/mos7720.c
> > +++ b/drivers/usb/serial/mos7720.c
> > @@ -639,6 +639,8 @@ static void parport_mos7715_restore_state(struct parport *pp,
> > spin_unlock(&release_lock);
> > return;
> > }
> > + mos_parport->shadowDCR = s->u.pc.ctr;
> > + mos_parport->shadowECR = s->u.pc.ecr;
>
> Wow that's old code. I'm guessing no one uses these devices really :(
Possibly, but this would still work as long as you don't switch parallel
port driver without disconnecting the mos7715 device in between.
> Anyway, nice work:
>
> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Thanks, now applied for -next.
Johan
