diff options
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
| -rw-r--r-- | drivers/usb/host/ehci-q.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 4e4066c35a0..36ca5077cdf 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -373,6 +373,17 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) retry_xacterr: if ((token & QTD_STS_ACTIVE) == 0) { + /* Report Data Buffer Error: non-fatal but useful */ + if (token & QTD_STS_DBE) + ehci_dbg(ehci, + "detected DataBufferErr for urb %p ep%d%s len %d, qtd %p [qh %p]\n", + urb, + usb_endpoint_num(&urb->ep->desc), + usb_endpoint_dir_in(&urb->ep->desc) ? "in" : "out", + urb->transfer_buffer_length, + qtd, + qh); + /* on STALL, error, and short reads this urb must * complete and all its qtds must be recycled. */ @@ -647,7 +658,7 @@ qh_urb_transaction ( /* * data transfer stage: buffer setup */ - i = urb->num_sgs; + i = urb->num_mapped_sgs; if (len > 0 && i > 0) { sg = urb->sg; buf = sg_dma_address(sg); |