From: Minas Harutyunyan Minas.Harutyunyan@synopsys.com
commit 860ef6cd3f90b84a1832f8a6485c90c34d3b588b upstream.
Moved ISOC request length checking from dwc2_hsotg_start_req() function to dwc2_hsotg_ep_queue().
Fixes: 4fca54aa58293 ("usb: gadget: s3c-hsotg: add multi count support") Signed-off-by: Minas Harutyunyan hminas@synopsys.com Signed-off-by: Felipe Balbi balbi@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/dwc2/gadget.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 12bcbde..d842483 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -1004,11 +1004,6 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, else packets = 1; /* send one packet if length is zero. */
- if (hs_ep->isochronous && length > (hs_ep->mc * hs_ep->ep.maxpacket)) { - dev_err(hsotg->dev, "req length > maxpacket*mc\n"); - return; - } - if (dir_in && index != 0) if (hs_ep->isochronous) epsize = DXEPTSIZ_MC(packets); @@ -1312,6 +1307,13 @@ static int dwc2_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req, req->actual = 0; req->status = -EINPROGRESS;
+ /* Don't queue ISOC request if length greater than mps*mc */ + if (hs_ep->isochronous && + req->length > (hs_ep->mc * hs_ep->ep.maxpacket)) { + dev_err(hs->dev, "req length > maxpacket*mc\n"); + return -EINVAL; + } + /* In DDMA mode for ISOC's don't queue request if length greater * than descriptor limits. */