diff options
| author | Guido Kiener <guido@kiener-muenchen.de> | 2019-03-18 11:18:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 20:44:57 +0300 |
| commit | 61fb6fa9b32bc89a88e44faec9f61ae05e69ebf0 (patch) | |
| tree | 6ec8b4dbef8eb7a718b2d7aac11e1122d174ab28 | |
| parent | 4ff888ea38c1228386db2e56a7168ce173616fc3 (diff) | |
| download | linux-61fb6fa9b32bc89a88e44faec9f61ae05e69ebf0.tar.xz | |
usb: gadget: net2280: Fix net2280_dequeue()
[ Upstream commit f1d3fba17cd4eeea20397f1324b7b9c69a6a935c ]
When a request must be dequeued with net2280_dequeue() e.g. due
to a device clear action and the same request is finished by the
function scan_dma_completions() then the function net2280_dequeue()
does not find the request in the following search loop and
returns the error -EINVAL without restoring the status ep->stopped.
Thus the endpoint keeps blocked and does not receive any data
anymore.
This fix restores the status and does not issue an error message.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
| -rw-r--r-- | drivers/usb/gadget/udc/net2280.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c index fc94a09e2a5a..3a8d056a5d16 100644 --- a/drivers/usb/gadget/udc/net2280.c +++ b/drivers/usb/gadget/udc/net2280.c @@ -1270,9 +1270,9 @@ static int net2280_dequeue(struct usb_ep *_ep, struct usb_request *_req) break; } if (&req->req != _req) { + ep->stopped = stopped; spin_unlock_irqrestore(&ep->dev->lock, flags); - dev_err(&ep->dev->pdev->dev, "%s: Request mismatch\n", - __func__); + ep_dbg(ep->dev, "%s: Request mismatch\n", __func__); return -EINVAL; } |