There is more possibility for sharing code if we just realise that now
__dwc3_gadget_kic_transfer() knows to break out early if there are no
TRBs left.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/gadget.c | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index a943f6e00fe1..850fda013768 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1290,7 +1290,6 @@ static void dwc3_gadget_start_isoc(struct dwc3 *dwc,
static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
{
struct dwc3 *dwc = dep->dwc;
- int ret = 0;
if (!dep->endpoint.desc) {
dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n",
@@ -1337,24 +1336,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
}
if ((dep->flags & DWC3_EP_BUSY) &&
- !(dep->flags & DWC3_EP_MISSED_ISOC)) {
- WARN_ON_ONCE(!dep->resource_index);
- ret = __dwc3_gadget_kick_transfer(dep,
- dep->resource_index);
- }
-
- goto out;
- }
+ !(dep->flags & DWC3_EP_MISSED_ISOC))
+ goto out;
- if (!dwc3_calc_trbs_left(dep))
return 0;
+ }
- ret = __dwc3_gadget_kick_transfer(dep, 0);
out:
- if (ret == -EBUSY)
- ret = 0;
-
- return ret;
+ return __dwc3_gadget_kick_transfer(dep, 0);
}
static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
--
2.14.1
--
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