diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8c6bb15ef51f..aab1c7903288 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -121,10 +121,10 @@ int xhci_halt(struct xhci_hcd *xhci) xhci->cmd_ring_state = CMD_RING_STATE_STOPPED; - if (timer_pending(&xhci->cmd_timer)) { + if (delayed_work_pending(&xhci->cmd_timer)) { xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Cleanup command queue"); - del_timer(&xhci->cmd_timer); + cancel_delayed_work(&xhci->cmd_timer); xhci_cleanup_command_queue(xhci); } @@ -138,7 +138,13 @@ static int xhci_start(struct xhci_hcd *xhci) { u32 temp; int ret; + struct usb_hcd *hcd = xhci_to_hcd(xhci); + /* + * disable irq to avoid xhci_irq flooding due to unhandeled port + * change event in halt state, as soon as xhci_start clears halt bit + */ + disable_irq(hcd->irq); temp = readl(&xhci->op_regs->command); temp |= (CMD_RUN); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Turn on HC, cmd = 0x%x.", @@ -159,6 +165,8 @@ static int xhci_start(struct xhci_hcd *xhci) /* clear state flags. Including dying, halted or removing */ xhci->xhc_state = 0; + enable_irq(hcd->irq); + return ret; } @@ -1579,19 +1587,6 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) xhci_urb_free_priv(urb_priv); return ret; } - if ((xhci->xhc_state & XHCI_STATE_DYING) || - (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, - "Ep 0x%x: URB %pK to be canceled on " - "non-responsive xHCI host.", - urb->ep->desc.bEndpointAddress, urb); - /* Let the stop endpoint command watchdog timer (which set this - * state) finish cleaning up the endpoint TD lists. We must - * have caught it in the middle of dropping a lock and giving - * back an URB. - */ - goto done; - } ep_index = xhci_get_endpoint_index(&urb->ep->desc); ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index]; @@ -3818,8 +3813,10 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, mutex_lock(&xhci->mutex); - if (xhci->xhc_state) /* dying, removing or halted */ + if (xhci->xhc_state) { /* dying, removing or halted */ + ret = -ESHUTDOWN; goto out; + } if (!udev->slot_id) { xhci_dbg_trace(xhci, trace_xhci_dbg_address, |