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From 445255441aa03cca3d1318d1e7ff58872c91c645 Mon Sep 17 00:00:00 2001
From: P33M <P33M@github.com>
Date: Fri, 2 Aug 2013 10:04:18 +0100
Subject: [PATCH 086/174] dwc_otg: fix potential sleep while atomic during urb
enqueue
Fixes a regression introduced with eb1b482a. Kmalloc called from
dwc_otg_hcd_qtd_add / dwc_otg_hcd_qtd_create did not always have
the GPF_ATOMIC flag set. Force this flag when inside the larger
critical section.
---
drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
@@ -781,8 +781,7 @@ static int dwc_otg_urb_enqueue(struct us
{
retval = dwc_otg_hcd_urb_enqueue(dwc_otg_hcd, dwc_otg_urb,
/*(dwc_otg_qh_t **)*/
- ref_ep_hcpriv,
- mem_flags == GFP_ATOMIC ? 1 : 0);
+ ref_ep_hcpriv, 1);
if (0 == retval) {
if (alloc_bandwidth) {
allocate_bus_bandwidth(hcd,
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