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authorJohan Hovold <jhovold@gmail.com>2013-03-21 15:37:41 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-26 00:54:31 +0400
commitcf41aa9e19052d467b54786090e1d3ba9104e394 (patch)
tree3907a6999f2da67dee2ff790f8120fa1faacf575 /drivers/usb
parent5813f281bba6603bed52d6005a9d6a9f23f5c061 (diff)
downloadlinux-cf41aa9e19052d467b54786090e1d3ba9104e394.tar.xz
USB: mos7720: always disable uart on close
Always try to disable the uart on close. Since the switch to tty ports, close will be called as part of shutdown before disconnect returns. Hence there is no need to check the disconnected flag, and we can put devices in disabled states also on driver unbind. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/mos7720.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index d1e2bf30bff8..fc506bb71315 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1140,16 +1140,9 @@ static void mos7720_close(struct usb_serial_port *port)
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
- mutex_lock(&serial->disc_mutex);
- /* these commands must not be issued if the device has
- * been disconnected */
- if (!serial->disconnected) {
- write_mos_reg(serial, port->number - port->serial->minor,
- MCR, 0x00);
- write_mos_reg(serial, port->number - port->serial->minor,
- IER, 0x00);
- }
- mutex_unlock(&serial->disc_mutex);
+ write_mos_reg(serial, port->number - port->serial->minor, MCR, 0x00);
+ write_mos_reg(serial, port->number - port->serial->minor, IER, 0x00);
+
mos7720_port->open = 0;
}