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path: root/drivers/usb/dwc3/ep0.c
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Diffstat (limited to 'drivers/usb/dwc3/ep0.c')
-rw-r--r--drivers/usb/dwc3/ep0.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 25910e251c04..3584a169886f 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -353,6 +353,9 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
353 353
354 dwc->test_mode_nr = wIndex >> 8; 354 dwc->test_mode_nr = wIndex >> 8;
355 dwc->test_mode = true; 355 dwc->test_mode = true;
356 break;
357 default:
358 return -EINVAL;
356 } 359 }
357 break; 360 break;
358 361
@@ -559,15 +562,20 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
559 length = trb->size & DWC3_TRB_SIZE_MASK; 562 length = trb->size & DWC3_TRB_SIZE_MASK;
560 563
561 if (dwc->ep0_bounced) { 564 if (dwc->ep0_bounced) {
565 unsigned transfer_size = ur->length;
566 unsigned maxp = ep0->endpoint.maxpacket;
567
568 transfer_size += (maxp - (transfer_size % maxp));
562 transferred = min_t(u32, ur->length, 569 transferred = min_t(u32, ur->length,
563 ep0->endpoint.maxpacket - length); 570 transfer_size - length);
564 memcpy(ur->buf, dwc->ep0_bounce, transferred); 571 memcpy(ur->buf, dwc->ep0_bounce, transferred);
565 dwc->ep0_bounced = false; 572 dwc->ep0_bounced = false;
566 } else { 573 } else {
567 transferred = ur->length - length; 574 transferred = ur->length - length;
568 ur->actual += transferred;
569 } 575 }
570 576
577 ur->actual += transferred;
578
571 if ((epnum & 1) && ur->actual < ur->length) { 579 if ((epnum & 1) && ur->actual < ur->length) {
572 /* for some reason we did not get everything out */ 580 /* for some reason we did not get everything out */
573 581