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From 17b1eb8e7fdbca81bc6d74c003b02ca3b08f1fa4 Mon Sep 17 00:00:00 2001
From: P33M <P33M@github.com>
Date: Wed, 9 Jan 2013 16:12:04 +0000
Subject: [PATCH 044/174] dwc_otg: fix bug in dwc_otg_hcd.c resulting in silent
kernel memory corruption, escalating to OOPS under high USB load.
---
drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 2 --
drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 1 +
2 files changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
@@ -500,8 +500,6 @@ int dwc_otg_hcd_urb_enqueue(dwc_otg_hcd_
DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. "
"Error status %d\n", retval);
dwc_otg_hcd_qtd_free(qtd);
- } else {
- qtd->qh = *ep_handle;
}
intr_mask.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->gintmsk);
if (!intr_mask.b.sofintr && retval == 0) {
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
@@ -946,6 +946,7 @@ int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t *
if (retval == 0) {
DWC_CIRCLEQ_INSERT_TAIL(&((*qh)->qtd_list), qtd,
qtd_list_entry);
+ qtd->qh = *qh;
}
DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
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