usb: dwc3: gadget: defer endpoint name change

We should only change endpoint names when we
actually manage to enable/disable it.

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

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 1f8f730..d97fcfa 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -547,6 +547,23 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
                trb_link->ctrl |= DWC3_TRB_CTRL_HWO;
        }
 
+       switch (usb_endpoint_type(desc)) {
+       case USB_ENDPOINT_XFER_CONTROL:
+               strlcat(dep->name, "-control", sizeof(dep->name));
+               break;
+       case USB_ENDPOINT_XFER_ISOC:
+               strlcat(dep->name, "-isoc", sizeof(dep->name));
+               break;
+       case USB_ENDPOINT_XFER_BULK:
+               strlcat(dep->name, "-bulk", sizeof(dep->name));
+               break;
+       case USB_ENDPOINT_XFER_INT:
+               strlcat(dep->name, "-int", sizeof(dep->name));
+               break;
+       default:
+               dev_err(dwc->dev, "invalid endpoint transfer type\n");
+       }
+
        return 0;
 }
 
@@ -604,6 +621,10 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
        dep->type = 0;
        dep->flags = 0;
 
+       snprintf(dep->name, sizeof(dep->name), "ep%d%s",
+                       dep->number >> 1,
+                       (dep->number & 1) ? "in" : "out");
+
        return 0;
 }
 
@@ -649,23 +670,6 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
                return 0;
        }
 
-       switch (usb_endpoint_type(desc)) {
-       case USB_ENDPOINT_XFER_CONTROL:
-               strlcat(dep->name, "-control", sizeof(dep->name));
-               break;
-       case USB_ENDPOINT_XFER_ISOC:
-               strlcat(dep->name, "-isoc", sizeof(dep->name));
-               break;
-       case USB_ENDPOINT_XFER_BULK:
-               strlcat(dep->name, "-bulk", sizeof(dep->name));
-               break;
-       case USB_ENDPOINT_XFER_INT:
-               strlcat(dep->name, "-int", sizeof(dep->name));
-               break;
-       default:
-               dev_err(dwc->dev, "invalid endpoint transfer type\n");
-       }
-
        spin_lock_irqsave(&dwc->lock, flags);
        ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc, false, false);
        spin_unlock_irqrestore(&dwc->lock, flags);
@@ -694,10 +698,6 @@ static int dwc3_gadget_ep_disable(struct usb_ep *ep)
                return 0;
        }
 
-       snprintf(dep->name, sizeof(dep->name), "ep%d%s",
-                       dep->number >> 1,
-                       (dep->number & 1) ? "in" : "out");
-
        spin_lock_irqsave(&dwc->lock, flags);
        ret = __dwc3_gadget_ep_disable(dep);
        spin_unlock_irqrestore(&dwc->lock, flags);