From: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Date: Fri, 9 Jan 2015 12:38:57 +0000 (+0100)
Subject: usb: dwc2: gadget: kill requests after disabling ep
X-Git-Tag: firefly_0821_release~176^2~2323^2^2~126
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1141ea01d5faa82f4910b4a8f896d10490860f24;p=firefly-linux-kernel-4.4.55.git

usb: dwc2: gadget: kill requests after disabling ep

kill_all_requests() can flush the fifo. Call it after disabling the
endpoint.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index cd8880d6be53..3dda17eb0700 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2605,8 +2605,6 @@ static int s3c_hsotg_ep_disable(struct usb_ep *ep)
 	epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index);
 
 	spin_lock_irqsave(&hsotg->lock, flags);
-	/* terminate all requests with shutdown */
-	kill_all_requests(hsotg, hs_ep, -ESHUTDOWN);
 
 	hsotg->fifo_map &= ~(1<<hs_ep->fifo_index);
 	hs_ep->fifo_index = 0;
@@ -2623,6 +2621,9 @@ static int s3c_hsotg_ep_disable(struct usb_ep *ep)
 	/* disable endpoint interrupts */
 	s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 0);
 
+	/* terminate all requests with shutdown */
+	kill_all_requests(hsotg, hs_ep, -ESHUTDOWN);
+
 	spin_unlock_irqrestore(&hsotg->lock, flags);
 	return 0;
 }