From 1e5c78fb5b18af8d51433cb74358979a0f13a36e Mon Sep 17 00:00:00 2001
From: Minas Harutyunyan <minas.harutyunyan@synopsys.com>
Date: Fri, 22 Feb 2019 15:49:19 +0400
Subject: [PATCH] dwc2: gadget: Fix completed transfer size calculation in DDMA

[ Upstream commit 5acb4b970184d189d901192d075997c933b82260 ]

Fix calculation of transfer size on completion in function
dwc2_gadget_get_xfersize_ddma().

Added increment of descriptor pointer to move to next descriptor in
the loop.

Fixes: aa3e8bc81311 ("usb: dwc2: gadget: DDMA transfer start and complete")

Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/gadget.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index e164439b2154..4af9a1c652ed 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2276,6 +2276,7 @@ static unsigned int dwc2_gadget_get_xfersize_ddma(struct dwc2_hsotg_ep *hs_ep)
 		if (status & DEV_DMA_STS_MASK)
 			dev_err(hsotg->dev, "descriptor %d closed with %x\n",
 				i, status & DEV_DMA_STS_MASK);
+		desc++;
 	}
 
 	return bytes_rem;