diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index e02a6e300c4..db8b8f20025 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -671,6 +671,14 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe, ep_ctx = xhci_get_ep_ctx(ctrl, virt_dev->out_ctx, ep_index); + /* + * If the endpoint was halted due to a prior error, resume it before + * the next transfer. It is the responsibility of the upper layer to + * have dealt with whatever caused the error. + */ + if ((le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) == EP_STATE_HALTED) + reset_ep(udev, ep_index); + ring = virt_dev->eps[ep_index].ring; /* * How much data is (potentially) left before the 64KB boundary? |