diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 742c23826e17..0cb45b95e4f5 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1336,7 +1336,7 @@ static bool xhci_urb_temp_buffer_required(struct usb_hcd *hcd, struct scatterlist *tail_sg; tail_sg = urb->sg; - max_pkt = usb_endpoint_maxp(&urb->ep->desc); + max_pkt = xhci_usb_endpoint_maxp(urb->dev, urb->ep); if (!urb->num_sgs) return ret; @@ -2924,6 +2924,20 @@ out: } EXPORT_SYMBOL_GPL(xhci_stop_endpoint_sync); +/* + * xhci_usb_endpoint_maxp - get endpoint max packet size + * @host_ep: USB host endpoint to be checked + * + * Returns max packet from the correct descriptor + */ +int xhci_usb_endpoint_maxp(struct usb_device *udev, + struct usb_host_endpoint *host_ep) +{ + if (usb_endpoint_is_hs_isoc_double(udev, host_ep)) + return le16_to_cpu(host_ep->eusb2_isoc_ep_comp.wMaxPacketSize); + return usb_endpoint_maxp(&host_ep->desc); +} + /* Issue a configure endpoint command or evaluate context command * and wait for it to finish. */ |