diff options
Diffstat (limited to 'drivers/usb/serial/sierra.c')
| -rw-r--r-- | drivers/usb/serial/sierra.c | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index e1994e264cc0..465e851b2815 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -137,24 +137,9 @@ static int is_himemory(const u8 ifnum, return 0; } -static int sierra_calc_interface(struct usb_serial *serial) +static u8 sierra_interface_num(struct usb_serial *serial) { - int interface; - struct usb_interface *p_interface; - struct usb_host_interface *p_host_interface; - - /* Get the interface structure pointer from the serial struct */ - p_interface = serial->interface; - - /* Get a pointer to the host interface structure */ - p_host_interface = p_interface->cur_altsetting; - - /* read the interface descriptor for this active altsetting - * to find out the interface number we are on - */ - interface = p_host_interface->desc.bInterfaceNumber; - - return interface; + return serial->interface->cur_altsetting->desc.bInterfaceNumber; } static int sierra_probe(struct usb_serial *serial, @@ -165,7 +150,7 @@ static int sierra_probe(struct usb_serial *serial, u8 ifnum; udev = serial->dev; - ifnum = sierra_calc_interface(serial); + ifnum = sierra_interface_num(serial); /* * If this interface supports more than 1 alternate @@ -178,9 +163,6 @@ static int sierra_probe(struct usb_serial *serial, usb_set_interface(udev, ifnum, 1); } - /* ifnum could have changed - by calling usb_set_interface */ - ifnum = sierra_calc_interface(serial); - if (is_blacklisted(ifnum, (struct sierra_iface_info *)id->driver_info)) { dev_dbg(&serial->dev->dev, @@ -342,7 +324,7 @@ static int sierra_send_setup(struct usb_serial_port *port) /* If composite device then properly report interface */ if (serial->num_ports == 1) { - interface = sierra_calc_interface(serial); + interface = sierra_interface_num(serial); /* Control message is sent only to interfaces with * interrupt_in endpoints */ @@ -916,7 +898,7 @@ static int sierra_port_probe(struct usb_serial_port *port) /* Determine actual memory requirements */ if (serial->num_ports == 1) { /* Get interface number for composite device */ - ifnum = sierra_calc_interface(serial); + ifnum = sierra_interface_num(serial); himemoryp = &typeB_interface_list; } else { /* This is really the usb-serial port number of the interface |