diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/hcd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 80995ef0868..cf0a098a543 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1670,11 +1670,16 @@ int usb_hcd_alloc_bandwidth(struct usb_device *udev, } } for (i = 0; i < num_intfs; ++i) { + struct usb_host_interface *first_alt; + int iface_num; + + first_alt = &new_config->intf_cache[i]->altsetting[0]; + iface_num = first_alt->desc.bInterfaceNumber; /* Set up endpoints for alternate interface setting 0 */ - alt = usb_find_alt_setting(new_config, i, 0); + alt = usb_find_alt_setting(new_config, iface_num, 0); if (!alt) /* No alt setting 0? Pick the first setting. */ - alt = &new_config->intf_cache[i]->altsetting[0]; + alt = first_alt; for (j = 0; j < alt->desc.bNumEndpoints; j++) { ret = hcd->driver->add_endpoint(hcd, udev, &alt->endpoint[j]); |