From: Johan Hovold johan@kernel.org
commit 975323ab8f116667676c30ca3502a6757bd89e8d upstream.
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@vger.kernel.org # 2.6.35 Reviewed-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/serial/mos7720.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -639,6 +639,8 @@ static void parport_mos7715_restore_stat spin_unlock(&release_lock); return; } + mos_parport->shadowDCR = s->u.pc.ctr; + mos_parport->shadowECR = s->u.pc.ecr; write_parport_reg_nonblock(mos_parport, MOS7720_DCR, mos_parport->shadowDCR); write_parport_reg_nonblock(mos_parport, MOS7720_ECR,