diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 526ebc0c7e72..6b0f4a47e402 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1340,6 +1340,11 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) if (usb_endpoint_xfer_isoc(&urb->ep->desc)) size = urb->number_of_packets; + else if (usb_endpoint_is_bulk_out(&urb->ep->desc) && + urb->transfer_buffer_length > 0 && + urb->transfer_flags & URB_ZERO_PACKET && + !(urb->transfer_buffer_length % usb_endpoint_maxp(&urb->ep->desc))) + size = 2; else size = 1; @@ -3117,7 +3122,7 @@ static u32 xhci_calculate_no_streams_bitmask(struct xhci_hcd *xhci, } /* - * The USB device drivers use this function (though the HCD interface in USB + * The USB device drivers use this function (through the HCD interface in USB * core) to prepare a set of bulk endpoints to use streams. Streams are used to * coordinate mass storage command queueing across multiple endpoints (basically * a stream ID == a task ID). @@ -4678,7 +4683,6 @@ int xhci_disable_usb3_lpm_timeout(struct usb_hcd *hcd, { struct xhci_hcd *xhci; u16 mel; - int ret; xhci = hcd_to_xhci(hcd); if (!xhci || !(xhci->quirks & XHCI_LPM_SUPPORT) || @@ -4686,10 +4690,7 @@ int xhci_disable_usb3_lpm_timeout(struct usb_hcd *hcd, return 0; mel = calculate_max_exit_latency(udev, state, USB3_LPM_DISABLED); - ret = xhci_change_max_exit_latency(xhci, udev, mel); - if (ret) - return ret; - return 0; + return xhci_change_max_exit_latency(xhci, udev, mel); } #else /* CONFIG_PM */ |