Merge tag 'fixes-for-v3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.18-rc5

Just one fix here on dwc3 which fixes a minor
bug caused by a fix that went in this v3.18-rc
cycle.

The corner case is minimal as it can only be
reproduced with back-to-back Setup transfers
(without starting data or status phase) by
means of a LeCroy USB Trainer, where we can
generate USB packets any way we like.

Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 711b23019d54..df38e7ef4976 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -791,6 +791,10 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 
         trb = dwc->ep0_trb;
 
+        r = next_request(&ep0->request_list);
+        if (!r)
+                return;
+
         status = DWC3_TRB_SIZE_TRBSTS(trb->size);
         if (status == DWC3_TRBSTS_SETUP_PENDING) {
                 dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
@@ -801,10 +805,6 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
                 return;
         }
 
-        r = next_request(&ep0->request_list);
-        if (!r)
-                return;
-
         ur = &r->request;
 
         length = trb->size & DWC3_TRB_SIZE_MASK;