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Commit 378fac2a authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: option: clean up probe coding style 



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

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e17f8af3

drivers/usb/serial/option.c

+23 −15
Original line number Diff line number Diff line
@@ -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);