diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-06 10:11:46 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-06 10:11:46 +0100 |
| commit | 90b4d60c6103105a634c495003c2ce931f075f63 (patch) | |
| tree | 033f07fb175a5e0651f6a63fc0fe8e1860555ce5 /drivers/usb/host/xhci-ring.c | |
| parent | bac91462e8a8609d7be02a2cbf5c2b406b04ed9f (diff) | |
| parent | 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff) | |
| download | blackbird-op-linux-90b4d60c6103105a634c495003c2ce931f075f63.tar.gz blackbird-op-linux-90b4d60c6103105a634c495003c2ce931f075f63.zip | |
Merge tag 'v3.7-rc3' into HEAD
Linux 3.7-rc3
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index c6ebb176dc4f..4e1a8946b8d1 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1228,6 +1228,17 @@ static void xhci_cmd_to_noop(struct xhci_hcd *xhci, struct xhci_cd *cur_cd) cur_seg = find_trb_seg(xhci->cmd_ring->first_seg, xhci->cmd_ring->dequeue, &cycle_state); + if (!cur_seg) { + xhci_warn(xhci, "Command ring mismatch, dequeue = %p %llx (dma)\n", + xhci->cmd_ring->dequeue, + (unsigned long long) + xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, + xhci->cmd_ring->dequeue)); + xhci_debug_ring(xhci, xhci->cmd_ring); + xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring); + return; + } + /* find the command trb matched by cd from command ring */ for (cmd_trb = xhci->cmd_ring->dequeue; cmd_trb != xhci->cmd_ring->enqueue; |
