Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (205 commits)
  USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h
  USB: UHCI: Support big endian GRUSBHC HC
  sparc: add {read,write}*_be routines
  USB: UHCI: Add support for big endian descriptors
  USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier
  USB: UHCI: Add support for big endian mmio
  usb-storage: Correct adjust_quirks to include latest flags
  usb/isp1760: Fix possible unlink problems
  usb/isp1760: Move function isp1760_endpoint_disable() within file.
  USB: remove remaining usages of hcd->state from usbcore and fix regression
  usb: musb: ux500: add configuration and build options for ux500 dma
  usb: musb: ux500: add dma glue layer for ux500
  usb: musb: ux500: add dma name for ux500
  usb: musb: ux500: add ux500 specific code for gadget side
  usb: musb: fix compile error
  usb-storage: fix up the unusual_realtek device list
  USB: gadget: f_audio: Fix invalid dereference of initdata
  EHCI: don't rescan interrupt QHs needlessly
  OHCI: fix regression caused by nVidia shutdown workaround
  USB: OTG: msm: Free VCCCX regulator even if we can't set the voltage
  ...

1 files changed, 16 insertions, 6 deletions

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 1543c838b3d1..6c9fbe352f73 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -471,8 +471,10 @@ static int enable_periodic (struct ehci_hcd *ehci)
          */
         status = handshake_on_error_set_halt(ehci, &ehci->regs->status,
                                              STS_PSS, 0, 9 * 125);
-        if (status)
+        if (status) {
+                usb_hc_died(ehci_to_hcd(ehci));
                 return status;
+        }
 
         cmd = ehci_readl(ehci, &ehci->regs->command) | CMD_PSE;
         ehci_writel(ehci, cmd, &ehci->regs->command);
@@ -510,8 +512,10 @@ static int disable_periodic (struct ehci_hcd *ehci)
          */
         status = handshake_on_error_set_halt(ehci, &ehci->regs->status,
                                              STS_PSS, STS_PSS, 9 * 125);
-        if (status)
+        if (status) {
+                usb_hc_died(ehci_to_hcd(ehci));
                 return status;
+        }
 
         cmd = ehci_readl(ehci, &ehci->regs->command) & ~CMD_PSE;
         ehci_writel(ehci, cmd, &ehci->regs->command);
@@ -2287,6 +2291,7 @@ scan_periodic (struct ehci_hcd *ehci)
         }
         clock &= mod - 1;
         clock_frame = clock >> 3;
+        ++ehci->periodic_stamp;
 
         for (;;) {
                 union ehci_shadow       q, *q_p;
@@ -2315,10 +2320,14 @@ restart:
                                 temp.qh = qh_get (q.qh);
                                 type = Q_NEXT_TYPE(ehci, q.qh->hw->hw_next);
                                 q = q.qh->qh_next;
-                                modified = qh_completions (ehci, temp.qh);
-                                if (unlikely(list_empty(&temp.qh->qtd_list) ||
-                                                temp.qh->needs_rescan))
-                                        intr_deschedule (ehci, temp.qh);
+                                if (temp.qh->stamp != ehci->periodic_stamp) {
+                                        modified = qh_completions(ehci, temp.qh);
+                                        if (!modified)
+                                                temp.qh->stamp = ehci->periodic_stamp;
+                                        if (unlikely(list_empty(&temp.qh->qtd_list) ||
+                                                        temp.qh->needs_rescan))
+                                                intr_deschedule(ehci, temp.qh);
+                                }
                                 qh_put (temp.qh);
                                 break;
                         case Q_TYPE_FSTN:
@@ -2460,6 +2469,7 @@ restart:
                         if (ehci->clock_frame != clock_frame) {
                                 free_cached_lists(ehci);
                                 ehci->clock_frame = clock_frame;
+                                ++ehci->periodic_stamp;
                         }
                 } else {
                         now_uframe++;