usb: dwc3: gadget: split dwc3_gadget_ep_cleanup_completed_requests()

No functional changes, it just makes the code slightly easier to read.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/dwc3/gadget.c

@@ -2308,13 +2308,10 @@ static bool dwc3_gadget_ep_request_completed(struct dwc3_request *req)
 	return req->request.actual == req->request.length;
 }
 
-static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
-		const struct dwc3_event_depevt *event, int status)
+static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep,
+		const struct dwc3_event_depevt *event,
+		struct dwc3_request *req, int status)
 {
-	struct dwc3_request	*req;
-	struct dwc3_request	*tmp;
-
-	list_for_each_entry_safe(req, tmp, &dep->started_list, list) {
 	int ret;
 
 	if (req->num_pending_sgs)
@@ -2333,14 +2330,29 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
 
 	req->request.actual = req->request.length - req->remaining;
 
-		if (!dwc3_gadget_ep_request_completed(req) ||
+	if (!dwc3_gadget_ep_request_completed(req) &&
 			req->num_pending_sgs) {
 		__dwc3_gadget_kick_transfer(dep);
-			break;
+		goto out;
 	}
 
 	dwc3_gadget_giveback(dep, req, status);
 
+out:
+	return ret;
+}
+
+static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
+		const struct dwc3_event_depevt *event, int status)
+{
+	struct dwc3_request	*req;
+	struct dwc3_request	*tmp;
+
+	list_for_each_entry_safe(req, tmp, &dep->started_list, list) {
+		int ret;
+
+		ret = dwc3_gadget_ep_cleanup_completed_request(dep, event,
+				req, status);
 		if (ret)
 			break;
 	}