From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: Wed, 27 Nov 2019 21:10:47 +0000 (-0800)
Subject: usb: dwc3: gadget: Clear started flag for non-IOC
X-Git-Tag: v5.3.17~140
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c59f882a4c0b042b019feedea285debb6085c5ae;p=thirdparty%2Fkernel%2Fstable.git

usb: dwc3: gadget: Clear started flag for non-IOC

commit d3abda5a98a18e524e17fd4085c9f4bd53e9ef53 upstream.

Normally the END_TRANSFER command completion handler will clear the
DWC3_EP_TRANSFER_STARTED flag. However, if the command was sent without
interrupt on completion, then the flag will not be cleared. Make sure to
clear the flag in this case.

Cc: stable@vger.kernel.org
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index e65497d37cc6e..54f79871be9af 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2699,6 +2699,9 @@ static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force,
 	WARN_ON_ONCE(ret);
 	dep->resource_index = 0;
 
+	if (!interrupt)
+		dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
+
 	if (dwc3_is_usb31(dwc) || dwc->revision < DWC3_REVISION_310A)
 		udelay(100);
 }