Clean up option probe by introducing intermediate variables and fixing
up comments.
Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
---
drivers/usb/serial/option.c | 38 +++++++++++++++++++++++---------------
1 files changed, 23 insertions(+), 15 deletions(-)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 097b6a7..f65bb5c 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1290,33 +1290,41 @@ 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);
--
1.7.8.6
--
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