USB: serial: mos7720: fix parallel-port state restore

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>

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 37967f4d93fda790e1bc87c7080b5bd666221f7b..6dace4800a06969d25aff5027154c73946444e9c 100644 (file)
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -640,6 +640,8 @@ 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;
        write_parport_reg_nonblock(mos_parport, MOS7720_DCR,
                                   mos_parport->shadowDCR);
        write_parport_reg_nonblock(mos_parport, MOS7720_ECR,