diff options
| author | Johan Hovold <johan@kernel.org> | 2020-11-04 19:47:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-29 15:42:43 +0300 |
| commit | 158806154b75511b6ffc2c74271c5e8cc34c314b (patch) | |
| tree | 1e78670af4b9eabb78a29bc67a46c5e201a39c0c /drivers/usb/serial/mos7720.c | |
| parent | 72af4b7a6f346e9d3c8ba7b3f35ed3d3bb07b376 (diff) | |
| download | linux-158806154b75511b6ffc2c74271c5e8cc34c314b.tar.xz | |
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>
Diffstat (limited to 'drivers/usb/serial/mos7720.c')
| -rw-r--r-- | drivers/usb/serial/mos7720.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 1927f41ccafc..1d8a6c17c9eb 100644 --- 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, |