| Message ID | 20220711151736.17382-1-strochuk@ispras.ru |
|---|---|
| State | New |
| Headers | show |
| Series | usb: musb: remove useless condition from musb_gadget_dequeue() | expand |
On Mon, Jul 11, 2022 at 06:17:36PM +0300, Andrey Strachuk wrote: > Comparison of 'ep' with NULL is useless since > 'ep' is a result of container_of and cannot be NULL > in any reasonable scenario. Again, show the call stack as this is not called with container_of() here. thanks, greg k-h
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 51274b87f46c..32447b7b1976 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1271,7 +1271,7 @@ static int musb_gadget_dequeue(struct usb_ep *ep, struct usb_request *request) int status = 0; struct musb *musb = musb_ep->musb; - if (!ep || !request || req->ep != musb_ep) + if (!request || req->ep != musb_ep) return -EINVAL; trace_musb_req_deq(req);
Comparison of 'ep' with NULL is useless since 'ep' is a result of container_of and cannot be NULL in any reasonable scenario. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Andrey Strachuk <strochuk@ispras.ru> Fixes: 47e9760529a9 ("USB: musb_gadget: implement set_wedge() method") --- drivers/usb/musb/musb_gadget.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)