diff options
Diffstat (limited to 'drivers/usb/atm/usbatm.h')
| -rw-r--r-- | drivers/usb/atm/usbatm.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h index f6f4508a9d4..0863f85fcc2 100644 --- a/drivers/usb/atm/usbatm.h +++ b/drivers/usb/atm/usbatm.h @@ -204,4 +204,19 @@ struct usbatm_data { struct urb *urbs[0]; }; +static inline void *to_usbatm_driver_data(struct usb_interface *intf) +{ + struct usbatm_data *usbatm_instance; + + if (intf == NULL) + return NULL; + + usbatm_instance = usb_get_intfdata(intf); + + if (usbatm_instance == NULL) /* set NULL before unbind() */ + return NULL; + + return usbatm_instance->driver_data; /* set NULL after unbind() */ +} + #endif /* _USBATM_H_ */ |