A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

usb: dwc3: gadget: don't send extra ZLP

Browse source 
If the request->length is zero, a ZLP should already be sent due to that
and another ZLP is not needed to terminate the transfer.

Fixes: 04c03d10e5 ("usb: dwc3: gadget: handle request->zero")
Signed-off-by: John Youn <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This commit is contained in:
John Youn 2015-12-22 12:23:20 -08:00 • committed by Felipe Balbi
commit d9261898a4
1 changed files with 2 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/usb/dwc3/gadget.c
View file

@ -1203,7 +1203,8 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
* extra usb_request ourselves so that it gets handled the same way as
* any other request.
*/
if (ret == 0 && request->zero && (request->length % ep->maxpacket == 0))
if (ret == 0 && request->zero && request->length &&
(request->length % ep->maxpacket == 0))
ret = __dwc3_gadget_ep_queue_zlp(dwc, dep);
spin_unlock_irqrestore(&dwc->lock, flags);