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path: root/drivers/usb/serial/garmin_gps.c
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Diffstat (limited to 'drivers/usb/serial/garmin_gps.c')
-rw-r--r--drivers/usb/serial/garmin_gps.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index f1c90cfe725..d74e43d6923 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1020,19 +1020,26 @@ static void garmin_close (struct usb_serial_port *port, struct file * filp)
if (!serial)
return;
- garmin_clear(garmin_data_p);
+ mutex_lock(&port->serial->disc_mutex);
+ if (!port->serial->disconnected)
+ garmin_clear(garmin_data_p);
/* shutdown our urbs */
usb_kill_urb (port->read_urb);
usb_kill_urb (port->write_urb);
- if (noResponseFromAppLayer(garmin_data_p) ||
- ((garmin_data_p->flags & CLEAR_HALT_REQUIRED) != 0)) {
- process_resetdev_request(port);
- garmin_data_p->state = STATE_RESET;
+ if (!port->serial->disconnected) {
+ if (noResponseFromAppLayer(garmin_data_p) ||
+ ((garmin_data_p->flags & CLEAR_HALT_REQUIRED) != 0)) {
+ process_resetdev_request(port);
+ garmin_data_p->state = STATE_RESET;
+ } else {
+ garmin_data_p->state = STATE_DISCONNECTED;
+ }
} else {
garmin_data_p->state = STATE_DISCONNECTED;
}
+ mutex_unlock(&port->serial->disc_mutex);
}