On Fri, Jan 18, 2019 at 02:29:30PM -0700, Shuah Khan wrote: > From: Shuah Khan <shuah@xxxxxxxxxx> > > Fix vep_free_request() to return when usb_ep and usb_request are null > instead of calling WARN_ON. > > Signed-off-by: Shuah Khan <shuah@xxxxxxxxxx> > --- > drivers/usb/usbip/vudc_dev.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/usbip/vudc_dev.c b/drivers/usb/usbip/vudc_dev.c > index 1634d8698e15..bfc8218e3fb6 100644 > --- a/drivers/usb/usbip/vudc_dev.c > +++ b/drivers/usb/usbip/vudc_dev.c > @@ -297,7 +297,7 @@ static void vep_free_request(struct usb_ep *_ep, struct usb_request *_req) > { > struct vrequest *req; > > - if (WARN_ON(!_ep || !_req)) > + if (!_ep || !_req) It's impossible for _ep to be NULL in this callback (see usb_ep_free_request() for where this is called from to prove that), so I don't think you need to check that. It's almost impossible for _req to be NULL, so you might as well leave that check in. thanks, greg k-h