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usb: dwc2: Remove unnecessary request length checking

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Remove request length checking from dwc2_hsotg_unmap_dma() and
dwc2_hsotg_map_dma(). That checking is done in functions called from
those functions, usb_gadget_unmap_request_by_dev() and
usb_gadget_map_request_by_dev() respectively, so it's unnecessary.

Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Razmik Karapetyan 2016-11-16 15:33:59 -08:00 committed by Felipe Balbi
parent c3b22fe2e4
commit 01719c2ef0
1 changed files with 0 additions and 10 deletions
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10
drivers/usb/dwc2/gadget.c
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@ -316,11 +316,6 @@ static void dwc2_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,
struct dwc2_hsotg_req *hs_req)
{
struct usb_request *req = &hs_req->req;
/* ignore this if we're not moving any data */
if (hs_req->req.length == 0)
return;
usb_gadget_unmap_request(&hsotg->gadget, req, hs_ep->dir_in);
}
@ -1101,13 +1096,8 @@ static int dwc2_hsotg_map_dma(struct dwc2_hsotg *hsotg,
struct dwc2_hsotg_ep *hs_ep,
struct usb_request *req)
{
struct dwc2_hsotg_req *hs_req = our_req(req);
int ret;
/* if the length is zero, ignore the DMA data */
if (hs_req->req.length == 0)
return 0;
ret = usb_gadget_map_request(&hsotg->gadget, req, hs_ep->dir_in);
if (ret)
goto dma_error;