ep->desc is set to NULL on endpoint disable. That means once an endpoint
is disabled it is not possible to free requests. In my target gadget I
first disable endpoints to make sure I have no requests on the fly and
then free frequests. On dummy I am leaking memory here.
Since I can't imagine a reason why it should be a bad thing, lets allow
to free requests on disabled endpoints. On removal of composite the ep0
request is removed so lets allow that here as well.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
v3..v4: WARN_ON() => __WARN();
drivers/usb/gadget/dummy_hcd.c | 8 +++-----
1 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 8cc1a88..c8e1d0f 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -596,14 +596,12 @@ static struct usb_request *dummy_alloc_request(struct usb_ep *_ep,
static void dummy_free_request(struct usb_ep *_ep, struct usb_request *_req)
{
- struct dummy_ep *ep;
struct dummy_request *req;
- if (!_ep || !_req)
- return;
- ep = usb_ep_to_dummy_ep(_ep);
- if (!ep->desc && _ep->name != ep0name)
+ if (!_ep || !_req) {
+ __WARN();
return;
+ }
req = usb_request_to_dummy_request(_req);
WARN_ON(!list_empty(&req->queue));
--
1.7.9
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