diff options
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 6 | ||||
| -rw-r--r-- | include/linux/usb/serial.h | 1 |
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index a0702db4e9a7..3292e0391e28 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -155,7 +155,8 @@ static void destroy_serial(struct kref *kref) if (serial->minor != SERIAL_TTY_NO_MINOR) return_serial(serial); - serial->type->release(serial); + if (serial->attached) + serial->type->release(serial); /* Now that nothing is using the ports, they can be freed */ for (i = 0; i < serial->num_port_pointers; ++i) { @@ -1060,12 +1061,15 @@ int usb_serial_probe(struct usb_interface *interface, module_put(type->driver.owner); if (retval < 0) goto probe_error; + serial->attached = 1; if (retval > 0) { /* quietly accept this device, but don't bind to a serial port as it's about to disappear */ serial->num_ports = 0; goto exit; } + } else { + serial->attached = 1; } if (get_free_serial(serial, num_ports, &minor) == NULL) { diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 73f121ef4de0..20b12f3207ae 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -148,6 +148,7 @@ struct usb_serial { struct usb_interface *interface; unsigned char disconnected:1; unsigned char suspending:1; + unsigned char attached:1; unsigned char minor; unsigned char num_ports; unsigned char num_port_pointers; |