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USB: option: clean up probe coding style

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Clean up option probe by introducing intermediate variables and fixing
up comments.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2012-05-30 12:25:00 +02:00 committed by Greg Kroah-Hartman
parent e17f8af316
commit 378fac2a46
1 changed files with 23 additions and 15 deletions
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38
drivers/usb/serial/option.c
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@ -1306,33 +1306,41 @@ static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
struct usb_wwan_intf_private *data;
struct usb_interface_descriptor *iface_desc =
&serial->interface->cur_altsetting->desc;
struct usb_device_descriptor *dev_desc = &serial->dev->descriptor;
/* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */
if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID &&
serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 &&
serial->interface->cur_altsetting->desc.bInterfaceClass == 0x8)
/*
* D-Link DWM 652 still exposes CD-Rom emulation interface in modem
* mode.
*/
if (dev_desc->idVendor == DLINK_VENDOR_ID &&
dev_desc->idProduct == DLINK_PRODUCT_DWM_652 &&
iface_desc->bInterfaceClass == 0x08)
return -ENODEV;
/* Bandrich modem and AT command interface is 0xff */
if ((serial->dev->descriptor.idVendor == BANDRICH_VENDOR_ID ||
serial->dev->descriptor.idVendor == PIRELLI_VENDOR_ID) &&
serial->interface->cur_altsetting->desc.bInterfaceClass != 0xff)
if ((dev_desc->idVendor == BANDRICH_VENDOR_ID ||
dev_desc->idVendor == PIRELLI_VENDOR_ID) &&
iface_desc->bInterfaceClass != 0xff)
return -ENODEV;
/* Don't bind reserved interfaces (like network ones) which often have
/*
* Don't bind reserved interfaces (like network ones) which often have
* the same class/subclass/protocol as the serial interfaces. Look at
* the Windows driver .INF files for reserved interface numbers.
*/
if (is_blacklisted(
serial->interface->cur_altsetting->desc.bInterfaceNumber,
iface_desc->bInterfaceNumber,
OPTION_BLACKLIST_RESERVED_IF,
(const struct option_blacklist_info *) id->driver_info))
return -ENODEV;
/* Don't bind network interface on Samsung GT-B3730, it is handled by a separate module */
if (serial->dev->descriptor.idVendor == SAMSUNG_VENDOR_ID &&
serial->dev->descriptor.idProduct == SAMSUNG_PRODUCT_GT_B3730 &&
serial->interface->cur_altsetting->desc.bInterfaceClass != USB_CLASS_CDC_DATA)
/*
* Don't bind network interface on Samsung GT-B3730, it is handled by
* a separate module.
*/
if (dev_desc->idVendor == SAMSUNG_VENDOR_ID &&
dev_desc->idProduct == SAMSUNG_PRODUCT_GT_B3730 &&
iface_desc->bInterfaceClass != USB_CLASS_CDC_DATA)
return -ENODEV;
data = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL);