diff options
| author | Alex Shi <alex.shi@linaro.org> | 2015-03-19 08:57:07 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2015-03-19 08:57:07 +0800 |
| commit | 42f45c9abdea541a9f966553b5e71dd576d432f9 (patch) | |
| tree | e9189f804b03d19696b0944a5a34ea9427177646 /drivers/usb/host/xhci-ring.c | |
| parent | 4d8fd56f051e5eea61209de4a3cb0619283a30af (diff) | |
| parent | ba0bfedf4c9cad58f56a7038d1462ffc21cd33df (diff) | |
Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-androidlsk-v3.10-15.03-androidlinux-linaro-lsk-v3.10-android
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index eb45ac843712..9948890ef93e 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2064,7 +2064,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, if (event_trb != ep_ring->dequeue) { /* The event was for the status stage */ if (event_trb == td->last_trb) { - if (td->urb->actual_length != 0) { + if (td->urb_length_set) { /* Don't overwrite a previously set error code */ if ((*status == -EINPROGRESS || *status == 0) && @@ -2078,7 +2078,13 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, td->urb->transfer_buffer_length; } } else { - /* Maybe the event was for the data stage? */ + /* + * Maybe the event was for the data stage? If so, update + * already the actual_length of the URB and flag it as + * set, so that it is not overwritten in the event for + * the last TRB. + */ + td->urb_length_set = true; td->urb->actual_length = td->urb->transfer_buffer_length - EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); |