[PATCH] usbip: Fix vep_free_request() null pointer checks on input args

[Shuah Khan]

Fix vep_free_request() to return when usb_ep and usb_request are null
instead of calling WARN_ON.

Signed-off-by: Shuah Khan <sh...@kernel.org>
---
 drivers/usb/usbip/vudc_dev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/usbip/vudc_dev.c b/drivers/usb/usbip/vudc_dev.c
index 1634d8698e15..a72c17ff1c6a 100644
--- a/drivers/usb/usbip/vudc_dev.c
+++ b/drivers/usb/usbip/vudc_dev.c
@@ -297,7 +297,8 @@ static void vep_free_request(struct usb_ep *_ep, struct 
usb_request *_req)
 {
        struct vrequest *req;
 
-       if (WARN_ON(!_ep || !_req))
+       /* ep is always valid here - see usb_ep_free_request() */
+       if (!_req)
                return;
 
        req = to_vrequest(_req);
-- 
2.17.1