diff options
| author | Oliver Neukum <oliver@neukum.org> | 2008-01-22 13:56:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-01 23:35:05 +0100 |
| commit | 95bef012ea4a3cce437a4fcf59bb097d14944b0d (patch) | |
| tree | bc9991b335211030bcc2ee76fdc42ae2fcccb645 /drivers/usb/serial/garmin_gps.c | |
| parent | USB: make sure usb serial drivers don't flush to logically disconnected devices (diff) | |
| download | linux-95bef012ea4a3cce437a4fcf59bb097d14944b0d.tar.xz linux-95bef012ea4a3cce437a4fcf59bb097d14944b0d.zip | |
USB: more serial drivers writing after disconnect
this covers the rest of the obvious cases by using the flags
and locks to guard against disconnect which were introduced
in the earlier patch against mos7720.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/garmin_gps.c')
| -rw-r--r-- | drivers/usb/serial/garmin_gps.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index f1c90cfe7251..d74e43d69230 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); } |