usb: gadget: core: Fix use-after-free of usb_request

Driver is tracing usb_request after freeing it.
Fix it by changing the order.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 859d5b11ba4c45353ce4174b1e0436db67189b90..1f8b19d9cf97bdd2224102a3e2a1684460c6a46f 100644 (file)
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -180,8 +180,8 @@ EXPORT_SYMBOL_GPL(usb_ep_alloc_request);
 void usb_ep_free_request(struct usb_ep *ep,
                                       struct usb_request *req)
 {
-       ep->ops->free_request(ep, req);
        trace_usb_ep_free_request(ep, req, 0);
+       ep->ops->free_request(ep, req);
 }
 EXPORT_SYMBOL_GPL(usb_ep_free_request);