diff options
| author | Gregory Herrero <gregory.herrero@intel.com> | 2015-01-30 11:09:27 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-01-30 19:30:29 +0300 |
| commit | c00dd4a6ec20a58ed38be85f8e47efda40625f17 (patch) | |
| tree | d387b6bc306e1f96b364e016b3c494c55353ce48 /drivers/usb/dwc2 | |
| parent | b46146d59fdac6a6f559d5e6618f128abf0c2912 (diff) | |
| download | linux-c00dd4a6ec20a58ed38be85f8e47efda40625f17.tar.xz | |
usb: dwc2: gadget: fix clear halt feature handling
When clearing HALT on an endpoint, req->complete of in progress
requests must be called with locks off. New request should only be
started if there is not already a pending request on the endpoint.
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 50ae09648cc1..02d0e9af9242 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -1007,16 +1007,22 @@ static int s3c_hsotg_process_req_feature(struct dwc2_hsotg *hsotg, hs_req = ep->req; ep->req = NULL; list_del_init(&hs_req->queue); - usb_gadget_giveback_request(&ep->ep, - &hs_req->req); + if (hs_req->req.complete) { + spin_unlock(&hsotg->lock); + usb_gadget_giveback_request( + &ep->ep, &hs_req->req); + spin_lock(&hsotg->lock); + } } /* If we have pending request, then start it */ - restart = !list_empty(&ep->queue); - if (restart) { - hs_req = get_ep_head(ep); - s3c_hsotg_start_req(hsotg, ep, - hs_req, false); + if (!ep->req) { + restart = !list_empty(&ep->queue); + if (restart) { + hs_req = get_ep_head(ep); + s3c_hsotg_start_req(hsotg, ep, + hs_req, false); + } } } |