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[4.19,341/639] dwc2: gadget: Fix completed transfer size calculation in DDMA

Message ID 20200124093129.863870628@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 24, 2020, 9:28 a.m. UTC
From: Minas Harutyunyan <minas.harutyunyan@synopsys.com>

[ 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 mbox series

Patch

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 3f68edde0f03a..f64d1cd08fb67 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2230,6 +2230,7 @@  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;