From: Felipe Balbi <balbi@ti.com>
Date: Mon, 16 Nov 2015 21:31:21 +0000 (-0600)
Subject: usb: dwc3: gadget: simplify dwc3_gadget_ep_queue()
X-Git-Tag: v4.5-rc1~124^2~6^2~96
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bb423984c28e9f94a8f466b791baa762cef0543d;p=karo-tx-linux.git

usb: dwc3: gadget: simplify dwc3_gadget_ep_queue()

By moving our sanity checks our internal function
__dwc3_gadget_ep_queue() we can simplify the
externally visible API while also making sure that
callers of __dwc3_gadget_ep_queue() also make use of
the same checks.

Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index a58376fd65fe..98fb8028c792 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1044,6 +1044,17 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 	struct dwc3		*dwc = dep->dwc;
 	int			ret;
 
+	if (!dep->endpoint.desc) {
+		dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n",
+				&req->request, dep->endpoint.name);
+		return -ESHUTDOWN;
+	}
+
+	if (WARN(req->dep != dep, "request %p belongs to '%s'\n",
+				&req->request, req->dep->name)) {
+		return -EINVAL;
+	}
+
 	req->request.actual	= 0;
 	req->request.status	= -EINPROGRESS;
 	req->direction		= dep->direction;
@@ -1161,22 +1172,7 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
 	int				ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
-	if (!dep->endpoint.desc) {
-		dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n",
-				request, ep->name);
-		ret = -ESHUTDOWN;
-		goto out;
-	}
-
-	if (WARN(req->dep != dep, "request %p belongs to '%s'\n",
-				request, req->dep->name)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	ret = __dwc3_gadget_ep_queue(dep, req);
-
-out:
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return ret;