target/linux/brcm2708/patches-3.10/0044-dwc_otg-fix-bug-in-dwc_otg_hcd.c-resulting-in-silent.patch

   1 From 9ffc237e5d245d9eda21b10b82dab448ec920620 Mon Sep 17 00:00:00 2001
   2 From: P33M <P33M@github.com>
   3 Date: Wed, 9 Jan 2013 16:12:04 +0000
   4 Subject: [PATCH 044/196] dwc_otg: fix bug in dwc_otg_hcd.c resulting in silent
   5  kernel          memory corruption, escalating to OOPS under high USB load.
   6
   7 ---
   8  drivers/usb/host/dwc_otg/dwc_otg_hcd.c       | 2 --
   9  drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 1 +
  10  2 files changed, 1 insertion(+), 2 deletions(-)
  11
  12 diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
  13 index 2b7945a..d5c94f4 100644
  14 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
  15 +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
  16 @@ -500,8 +500,6 @@ int dwc_otg_hcd_urb_enqueue(dwc_otg_hcd_t * hcd,
  17                 DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. "
  18                           "Error status %d\n", retval);
  19                 dwc_otg_hcd_qtd_free(qtd);
  20 -       } else {
  21 -               qtd->qh = *ep_handle;
  22         }
  23         intr_mask.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->gintmsk);
  24         if (!intr_mask.b.sofintr && retval == 0) {
  25 diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
  26 index e6b2a7b..b337e1b 100644
  27 --- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
  28 +++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
  29 @@ -946,6 +946,7 @@ int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t * qtd,
  30         if (retval == 0) {
  31                 DWC_CIRCLEQ_INSERT_TAIL(&((*qh)->qtd_list), qtd,
  32                                         qtd_list_entry);
  33 +               qtd->qh = *qh;
  34         }
  35         DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
  36
  37 --
  38 1.9.1
  39