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| author | Kukjin Kim <kgene.kim@samsung.com> | 2012-11-20 18:19:10 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-11-20 18:19:10 +0900 |
| commit | 840ed42942cc1ebbda2ed55f4019673b537fc5de (patch) | |
| tree | 415644488e3966837eeb5061d96d4ca7db862318 /drivers/usb/host/xhci-ring.c | |
| parent | 0dca30003bc752b2fc15906e562ef4e4925725fd (diff) | |
| parent | 0a9d5ac307aefbb2c772537d3fe7f75046d563ac (diff) | |
| download | talos-op-linux-840ed42942cc1ebbda2ed55f4019673b537fc5de.tar.gz talos-op-linux-840ed42942cc1ebbda2ed55f4019673b537fc5de.zip | |
Merge branch 'next/hdmi-samsung' into next/devel-samsung
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; |
